| 释义 |
pearl
pearla gem; yellowish white color
Not to be confused with:purl – to knit with a purl stitch; to edge with lace or embroiderypearl 1 P0135100 (pûrl)n.1. a. A smooth, lustrous, variously colored mass, chiefly of calcium carbonate, formed around a grain of sand or other foreign matter inside the shell of certain bivalve mollusks and valued as a gem.b. A bead resembling one of these masses.2. Something small and spherical in shape: "pearls of sweat beading on her upper lip" (Katherine Min).3. Mother-of-pearl; nacre.4. One that is highly regarded for its beauty or value.5. Printing A type size measuring approximately five points.6. A yellowish white.v. pearled, pearl·ing, pearls v.tr.1. To decorate or cover with pearls or beads resembling pearls.2. To make into the shape or color of pearls.v.intr.1. To dive or fish for pearls or pearl-bearing mollusks.2. To form beads resembling pearls.
[Middle English perle, from Old French, from Latin *pernula, diminutive of perna, ham, seashell (from the shape of the shell).]
pearl 2 P0135100 (pûrl)v. & n. Variant of purl2.pearl (pɜːl) n1. (Jewellery) a hard smooth lustrous typically rounded structure occurring on the inner surface of the shell of a clam or oyster: consists of calcium carbonate secreted in layers around an invading particle such as a sand grain; much valued as a gem. 2. (Jewellery) any artificial gem resembling this3. (Elements & Compounds) See mother-of-pearl4. (Zoology) See mother-of-pearl5. a person or thing that is like a pearl, esp in beauty or value6. (Colours) a pale greyish-white colour, often with a bluish tinge7. (Printing, Lithography & Bookbinding) a size of printer's type, approximately equal to 5 pointadj8. (Jewellery) of, made of, or set with pearl or mother-of-pearl9. having the shape or colour of a pearlvb10. (Jewellery) (tr) to set with or as if with pearls11. to shape into or assume a pearl-like form or colour12. (intr) to dive or search for pearls[C14: from Old French, from Vulgar Latin pernula (unattested), from Latin perna sea mussel]
pearl (pɜːl) n, vb (Knitting & Sewing) a variant spelling of purl12, purl13, purl15pearl (pɜrl)
n. 1. a smooth, rounded bead, composed chiefly of aragonite, formed around an irritating foreign body within the shells of oysters and other mollusks: valued as a gem when lustrous and finely colored. 2. something resembling this, as various synthetic substances used in costume jewelry. 3. something similar in form or luster. 4. something precious or choice: pearls of wisdom. 5. a very pale gray, often with a bluish tinge. 6. mother-of-pearl. 7. a 5-point type. v.t. 8. to adorn with or as if with pearls. 9. to make like a pearl, as in form or color. v.i. 10. to dive or search for pearls. 11. to assume a pearllike form or appearance. adj. 12. of or resembling a pearl. 13. set or adorned with or consisting of pearls or mother-of-pearl. 14. having or reduced to small, round grains. [1300–50; Middle English perle < Middle French < Italian or Vulgar Latin *perla (> German Perle, Old English pærl), for Latin *pernula, diminutive of perna sea mussel] pearl′er, n. pearl (pûrl) A smooth, slightly iridescent, white or grayish rounded growth inside the shells of some mollusks. A pearl, which forms as a reaction to the presence of a foreign particle, consists of thin layers of mother-of-pearl that are deposited around the particle. The pearls of oysters are often valued as gems.pearl
Past participle: pearled
Gerund: pearling
| Present |
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| I pearl | | you pearl | | he/she/it pearls | | we pearl | | you pearl | | they pearl |
| Preterite |
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| I pearled | | you pearled | | he/she/it pearled | | we pearled | | you pearled | | they pearled |
| Present Continuous |
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| I am pearling | | you are pearling | | he/she/it is pearling | | we are pearling | | you are pearling | | they are pearling |
| Present Perfect |
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| I have pearled | | you have pearled | | he/she/it has pearled | | we have pearled | | you have pearled | | they have pearled |
| Past Continuous |
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| I was pearling | | you were pearling | | he/she/it was pearling | | we were pearling | | you were pearling | | they were pearling |
| Past Perfect |
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| I had pearled | | you had pearled | | he/she/it had pearled | | we had pearled | | you had pearled | | they had pearled |
| Future |
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| I will pearl | | you will pearl | | he/she/it will pearl | | we will pearl | | you will pearl | | they will pearl |
| Future Perfect |
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| I will have pearled | | you will have pearled | | he/she/it will have pearled | | we will have pearled | | you will have pearled | | they will have pearled |
| Future Continuous |
|---|
| I will be pearling | | you will be pearling | | he/she/it will be pearling | | we will be pearling | | you will be pearling | | they will be pearling |
| Present Perfect Continuous |
|---|
| I have been pearling | | you have been pearling | | he/she/it has been pearling | | we have been pearling | | you have been pearling | | they have been pearling |
| Future Perfect Continuous |
|---|
| I will have been pearling | | you will have been pearling | | he/she/it will have been pearling | | we will have been pearling | | you will have been pearling | | they will have been pearling |
| Past Perfect Continuous |
|---|
| I had been pearling | | you had been pearling | | he/she/it had been pearling | | we had been pearling | | you had been pearling | | they had been pearling |
| Conditional |
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| I would pearl | | you would pearl | | he/she/it would pearl | | we would pearl | | you would pearl | | they would pearl |
| Past Conditional |
|---|
| I would have pearled | | you would have pearled | | he/she/it would have pearled | | we would have pearled | | you would have pearled | | they would have pearled |
Thesaurus| Noun | 1. |  pearl - a smooth lustrous round structure inside the shell of a clam or oyster; much valued as a jeweljewel, precious stone, gem - a precious or semiprecious stone incorporated into a piece of jewelryseed pearl - a small imperfect pearl | | 2. |  pearl - a shade of white the color of bleached bonesoff-white, ivory, bonewhiteness, white - the quality or state of the achromatic color of greatest lightness (bearing the least resemblance to black) | | 3. |  pearl - a shape that is spherical and small; "he studied the shapes of low-viscosity drops"; "beads of sweat on his forehead"drop, beadsphere - a solid figure bounded by a spherical surface (including the space it encloses)dewdrop - a drop of dewteardrop - anything shaped like a falling drop (as a pendant gem on an earring) | | Verb | 1. | pearl - gather pearls, from oysters in the oceangather, pull together, collect, garner - assemble or get together; "gather some stones"; "pull your thoughts together" |
pearl nounRelated words
adjectives margaric, margariticpearlnounSomeone or something considered exceptionally precious:gem, prize, treasure.Translationspearl (pəːl) noun a valuable, hard, round object formed by oysters and several other shellfish. The necklace consists of three strings of pearls; (also adjective) a pearl necklace. 珍珠 珍珠ˈpearly adjective like pearls. pearly teeth. 珍珠似的 珍珠似的ˈpearl-diver, ˈpearl-fisher nouns a person who dives or fishes for pearls. 採珠人 采珠人
pearl
pearl-clutching1. adjective Scandalized or mortified about some event, situation, thing, etc., that was once salacious but is now relatively common; morally conservative, stuffy, prudish, or unfashionable. Those pearl-clutching old prudes gave me dirty looks as I walked past in my cut-off jeans, but I don't give a hoot what they think about me.2. noun The practice or habit of reacting in a scandalized or mortified manner to once-salacious but now relatively common things, events, situations, etc. I have to say that I am sick and tired of all the pearl-clutching going on amongst parents. Look, our kids are growing up in a different social environment than when we were in school, and it's high time we learned to deal with that!clutch (one's)/the pearlsTo react in a scandalized or mortified manner to once-salacious but now relatively common things, events, situations, etc. Parents should try not to clutch the pearls every time their teenagers come out of their room dressed outrageously—it only makes them want to push the envelope even further. My mother would always clutch her pearls whenever I began telling her about a new boyfriend, so eventually I stopped filling her in altogether.See also: clutch, pearlpearl-clutchTo react in a scandalized or mortified manner to once-salacious but now relatively common things, events, situations, etc. Parents should try not to pearl-clutch every time their teenagers come out of their room dressed outrageously—it only makes them want to push the envelope even further. My mother would always pearl-clutch whenever I began telling her about a new boyfriend, so eventually I stopped filling her in altogether.mother of pearlAn iridescent substance that naturally appears in certain mollusk shells. It is often used as a decorative material for items like buttons and jewelry. The mother of pearl earrings you gave me for my birthday are so beautiful!See also: mother, of, pearlpearl necklacevulgar slang A term for the spots of semen left on a woman's neck and chest after a man ejaculates between her breasts.See also: pearlpearl of wisdomA piece of valuable advice. The phrase is sometimes used sarcastically. The old woman shared her pearls of wisdom with the struggling teen, in the hopes of making him feel better. Thanks for the pearl of wisdom, buddy, but your suggestion is ridiculous.See also: of, pearl, wisdomcast (one's) pearls before swineTo present something valuable to one who does not recognize its worth. The phrase originated in the Bible. Most of the time, playing classical music for high schoolers is like casting your pearls before swine. But every so often a few kids appreciate it. I can't believe he gave his brand-new convertible to that bumpkin—talk about casting your pearls before swine.See also: before, cast, pearl, swinepearls before swineSomething valuable presented to one who does not or will not recognize its worth. The phrase originated in the Bible. Most of the time, playing classical music for high schoolers is like casting your pearls before swine. But every so often a few kids appreciate it. I can't believe he gave his brand-new convertible to that bumpkin—talk about casting your pearls before swine.See also: before, pearl, swinecast (one's) pearls before swineFig. to waste something good on someone who doesn't care about it. (From a biblical quotation.) To sing for them is to cast pearls before swine. To serve them French cuisine is like casting one's pearls before swine.See also: before, cast, pearl, swinecast pearls before swineGive something of value of someone who won't appreciate it, as in The old professor felt that lecturing on Dante to unruly undergraduates would be casting pearls before swine . This term comes from the New Testament (Matthew 7:6), appearing in Tyndale's translation (1526). It was repeated often by writers from Shakespeare to Dickens and remains current. See also: before, cast, pearl, swinea pearl of wisdom If you describe something that someone has said or written as a pearl of wisdom, you mean that it sounds very wise or helpful. I tried to attract the attention of a passing waitress and waited for Josh's next pearl of wisdom. We here in Arkansas are always so grateful for all the pearls of wisdom that may fall from Mr. Greenberg's lips. Note: People usually use this expression humorously, to suggest that in fact they think the person is saying something very obvious, boring or silly. See also: of, pearl, wisdomcast pearls before swine LITERARYIf you cast pearls before swine, you offer something valuable to someone who is not good enough or clever enough to appreciate it. He has written many fine pieces on the subject, although one suspects he is casting pearls before swine. Note: Verbs such as throw and toss are sometimes used instead of cast. He should know better than to throw pearls before swine. Note: You can also call something good that is not appreciated pearls before swine. The Musical Times, she tells me, is written for those with a genuine understanding of the finer points. I certainly hope so, or else my piece on Rossini will be pearls before swine. Note: This expression comes from the Bible, from the Sermon on the Mount, when Jesus is giving His followers advice on how they should live: `Give not that which is holy unto dogs, neither cast ye your pearls before swine, lest they trample them under their feet, and turn again and rend you.' (Matthew 7:6) See also: before, cast, pearl, swinecast (or throw) pearls before swine give or offer valuable things to people who do not appreciate them. This expression is a quotation from Matthew 7:6: ‘Give not that which is holy unto the dogs, neither cast ye your pearls before swine, lest they trample them under their feet, and turn again and rend you’.See also: before, cast, pearl, swinecast ˌpearls before ˈswine (saying) give or offer valuable things to people who do not understand their value: She decided not to buy the most expensive wine for dinner, thinking that would be casting pearls before swine.This expression comes from the Bible. Swine are pigs.See also: before, cast, pearl, swinepearls of ˈwisdom (usually ironic) good advice; wise remarks: They all gathered round her, hoping for some of her pearls of wisdom.See also: of, pearl, wisdomcast pearls before swine, toTo offer something of value to those who cannot or will not appreciate it. The saying comes from Jesus’ teachings as recorded in the Gospel of St. Matthew (7:6): “Give not that which is holy unto the dogs, neither cast ye your pearls before swine, lest they trample them under their feet.” It was a well-known saying by Shakespeare’s time (“Pearl enough for a swine,” Love’s Labour’s Lost, 4.2) and a cliché long before Dickens wrote, “Oh, I do a thankless thing, and cast pearls before swine!” (Dombey and Son, 1848).See also: before, cast, pearlpearl of great price, aAnything of enormous value. The term comes from the New Testament (Matthew 13:45–46), in which the kingdom of heaven is so described. The doctrinal book of the Mormons (members of the Church of Jesus Christ of Latter-day Saints) is called the Pearl of Great Price. See also: great, of, pearlpearls of wisdomBrilliant sayings or precepts. This phrase, which dates from the late 1800s, is often used sarcastically. The Daily Chronicle had it on December 12, 1907: “The gramophonist will redistribute the pearls of wisdom which have fallen from the lips of great Unionist statesmen to crowds of admiring villagers.”See also: of, pearl, wisdompearls before swineWasting something that is not appreciated. In Matthew 7:6, Jesus warned his followers not to waste time by throwing pearls of wisdom before ungodly swine. When writers Claire Booth Luce and Dorothy Parker simultaneously arrived at a door, Luce stepped back to allow Parker to precede her by saying with a smile, “Age before beauty.” As she walked through the door, Parker replied, “And pearls before swine.”See also: before, pearl, swinepearl
Pearl, river, 485 mi (781 km) long, rising in E Miss. and flowing S to Lake Borgne, an inlet of the Gulf of Mexico; its lower section (116 mi/187 km) forms the Miss.-La. boundary. Above Jackson, Miss., the Pearl's largest city, is Ross Barnett Reservoir, one of the state's chief water-storage areas.
Pearl, Chin. Zhujiang, river, 110 mi (177 km) long, S Guangdong prov., S China. Formed at Guangzhou by the confluence of the Xi and Bei rivers, it flows E then S past Guangzhou and Huangpu island to form a large estuary between Hong Kong and Macau. The river links Guangzhou to Hong Kong and the South China Sea and is one of China's most important waterways and one of the centers of its world trade. It is vitally important to the special economic zones that lie along its estuary, which is crossed by the Hong Kong–Zhuhai–Macau Bridge (opened 2018), the main section of which consists of a 14.2 mi (22.9 km) bridge and 4.2 mi (6.7 km) tunnel. The estuary, which also has been known as the Boca Tigris, is kept open for ocean vessels by dredging.
pearl, hard, rounded secretion formed inside the shell of certain mollusks, used as a gem. It is secreted by the epithelial cells of the mantle, a curtain of tissue between the shell and body mass, and is deposited in successive layers around an irritating object—usually a parasite in the case of natural pearls—that gets caught in the soft tissue of the mollusk. The pearl is built up of layers of aragonite or calcite (crystalline forms of calcium carbonate) held together by conchiolin (a horny organic substance); its composition is identical to that of the mother-of-pearlmother-of-pearl
or nacre
, the iridescent substance that forms the lining of the shells of some fresh-water and some salt-water mollusks. Like the pearl it is a secretion of the mantle, composed of alternate layers of calcium carbonate and conchiolin.
..... Click the link for more information. , or nacre, that forms the interior layer of the mollusk shell. Pearls may be rice-shaped, round, pear-shaped, button-shaped, or irregular (baroque) and are valued in that order. Pearls found attached to the inner surface of the shell are known as blister pearls. The best pearls are usually white, sometimes with a creamy or pinkish tinge, but may be tinted with yellow, green, blue, brown, or black. Black pearls, because of their rarity, are often highly valued. The unique luster, or orient, of pearls depends upon the reflection and refraction of light from the translucent layers and is finer in proportion as the layers are thinner and more numerous. The iridescence which some pearls display is caused by the overlapping of successive layers, which breaks up light falling on the surface. Pearls are not cut or polished like other gems. They are very soft and are injured by acids and heat; as organic products, they are subject to decay. Commercially valuable pearls are obtained from pearl oysters (especially of the genus Pinctada) and from freshwater pearl mussels (especially of the genus Hyriopsis). The largest natural pearl center is the Persian Gulf, which is said to produce the finest saltwater pearls. Other important sources are the coasts of India, China, Japan, Australia, the Sulu Archipelago, various Pacific islands, Venezuela, and Central America, and the rivers of Europe and North America. In ancient times the Red Sea was an important source. Nearly all of the world's supply of cultured saltwater pearls is produced by the Japanese, who have perfected the techniques of saltwater pearl cultivation. These pearls are commonly produced by placing a small mother-of-pearl bead enclosed in a piece of mantle tissue in the body of the oyster. The oysters are then placed in cages that are suspended into sheltered bays for the period of time (up to 4 years) required for pearl formation. Freshwater pearl cultivation is dominated by the Chinese. To produce freshwater pearls, a small piece of mantle tissue from one mussel is placed into a second mussel; shell beads and small seed pearls are also used. The quantity of freshwater pearls produced far exceeds that of saltwater pearls, and freshwater pearls are also significantly cheaper. Although many freshwater pearls are irregular oblong "rice pearls," round and near-round pearls are also produced. Inferior Chinese pearls are crushed and used in cosmetics and medicines. Bibliography See N. Landman et al., Pearls (2001). What does it mean when you dream about a pearl?The pearl is sometimes associated with the feminine principle, lunar forces, intuition, and water (all of which are identified with the unconscious). Mother of pearl lining the shell of the abalone suggests a fetus emerging to life. Alternatively, pearls in a dream may symbolize “pearls of wisdom” regarding a new idea or venture or a warning not to “cast your pearls before swine” by compromising oneself or one’s values. pearl[pərl] (materials) A dense, more or less round, white or light-colored concretion having various degrees of luster formed within or beneath the mantle of various mollusks by deposition of thin concentric layers of nacre about a foreign particle. (pathology) Rounded masses of concentrically arranged squamous epithelial cells, seen in some carcinomas. Mucous casts of the bronchi or bronchioles found in the sputum of asthmatic persons. pearlJune. [Am. Gem Symbolism: Kunz, 319–320]See: Birthstones
pearlemblem of discreet shyness. [Gem Symbolism: Kunz, 69]See: Modestypearl1. See mother-of-pearl2. a pale greyish-white colour, often with a bluish tinge PEARL (language, mathematics)A language for constructive mathematics developed by Constable at Cornell University inthe 1980s.PEARL (language, real-time)Process and Experiment Automation Real-Time Language.PEARL (language, education)One of five pedagogical languagesbased on Markov algorithms, used in "Nonpareil, a MachineLevel Machine Independent Language for the Study ofSemantics", B. Higman, ULICS Intl Report No ICSI 170, U London(1968). Compare Brilliant, Diamond, Nonpareil, Ruby.PEARL (language)A multilevel language developed by Brian Randellca 1970 and mentioned in "Machine Oriented Higher LevelLanguages", W. van der Poel, N-H 1974.PEARL (language, tool, history)An obsolete term for Larry Wall's PERL programming language, which never fell intocommon usage other than in typographical errors. The missing'a' remains as an atrophied remnant in the expansion"Practical Extraction and Report Language".
["Programming Perl", Larry Wall and Randal L. Schwartz,O'Reilly & Associates, Inc. Sebastopol, CA. ISBN0-93715-64-1].pearl
pearl [perl] 1. a smooth lustrous deposit found in certain mollusks, valued as a gem.2. something resembling this structure, either because of being round and hard or because of being considered valuable.3. a small medicated granule, or a glass globule with a single dose of volatile medicine, as amyl nitrite.4. a rounded mass of tough sputum, as seen in the early stages of an attack of asthma.clinical pearl a short, straightforward piece of clinical advice.epidermic p's (epithelial p's) rounded concentric masses of epithelial cells found in certain papillomas and epitheliomas.Laënnec's p's soft casts of the smaller bronchial tubes expectorated in bronchial asthma; see also spirals" >Curschmann's spirals.Pearl (pĕrl), Raymond, U.S. biologist, 1879-1940. See: Pearl index.
pearl (pĕrl), 1. A concretion formed around a grain of sand or other foreign body within the shell of certain mollusks. 2. One of a number of small tough masses, for example, mucus occurring in the sputum in asthma. 3. Synonym(s): keratin pearlPEARL Medspeak-UK
Psychiatric Emergency, Assessment, and Referral & Liaison. A service developed by the Manchester Mental Health & Social Care Trust, which was designed to address the fragmented services received after-hours by patients needing emergency mental health services in Manchester (UK).
Metabolism
Postmenopausal Evaluation And Risk Reduction with Lasofoxifene. A study designed to assess:
Primary outcomes—safety and efficacy of lasofoxifene in reducing the risk of osteoporotic fractures; and
Secondary outcomes—incidence of breast cancer, coronary events and hospitalisations for cerebrovascular disease.
Conclusion
Long-term lasofoxifene treatment results in benign endometrial changes that do not increase the risk for endometrial cancer or hyperplasia in postmenopausal women.
Logistics
Randomised, international, double-blind, placebo-controlled; 7500 women.PEARL™ Physiologic Endometrial Ablation/Resection Loop A method for resection and ablation procedures using isotonic irrigation–eg, normal saline, eliminating complications associated with non-isotonic irrigation systems which may occur when the tissues absorb irrigation solutionspearl (pĕrl) One of a number of small, tough masses (e.g., mucus occurring in the sputum in asthma). e·nam·el·o·ma (ĕ-nam'ĕl-ō'mă) Developmental anomaly with small nodule of enamel below cementoenamel junction, usually at bifurcation of molar teeth.
Synonym(s): enamel drop, enamel nodule, enamel pearl, pearl. PEARL
| Acronym | Definition |
|---|
| PEARL➣Pupils Equal And Reactive to Light | | PEARL➣Physical Evidence and Reasoned Logic (scientific method) | | PEARL➣Performance, Empowerment, Accountability, Responsiveness, Local Embeddedness (business motto) | | PEARL➣National Committee for Public Education And Religious Liberty | | PEARL➣Project to Enhance Aged Rural Living | | PEARL➣Professional Electrical Apparatus Recycler's League | | PEARL➣Personnel Expertise and Resource Listing | | PEARL➣Project to Enhance Agriculture in Rwanda through Linkages |
pearl
Related to pearl: Pearl HarborSynonyms for pearlnoun someone or something considered exceptionally preciousSynonymsSynonyms for pearlnoun a smooth lustrous round structure inside the shell of a clam or oysterRelated Words- jewel
- precious stone
- gem
- seed pearl
noun a shade of white the color of bleached bonesSynonymsRelated Wordsnoun a shape that is spherical and smallSynonymsRelated Wordsverb gather pearls, from oysters in the oceanRelated Words- gather
- pull together
- collect
- garner
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