| 释义 |
Definition of nodule in English: nodulenoun ˈnɒdjuːlˈnɑdʒul 1A small swelling or aggregation of cells in the body, especially an abnormal one. the area feels firm but has irregular nodules which can be painful to touch laparotomy showed white nodules in the liver Example sentencesExamples - She already had hepatic involvement, and the subcutaneous nodules spread over the whole of her trunk.
- Rashes with purpura, urticaria, and subcutaneous nodules are common.
- Computed tomography showed a solitary nodule in the right lobe of the liver.
- Endoscopy evaluation revealed an antral nodule, which was biopsied.
- The subcutaneous nodule, 1.7 cm across, was excised under local anaesthetic.
- The most common presenting lesions are papules, vesicles, pustules, and nodules.
- The clinical significance of these small nodules of Langerhans cells is not fully understood.
- A thyroid nodule is a palpable swelling in a thyroid gland with an otherwise normal appearance.
- A computed tomography scan showed multiple nodules in the liver and bilateral pulmonary metastasis.
- This is seen in longstanding sarcoidosis, in which asymptomatic, violaceous nodules are seen on nose, fingers, and ears.
- Regional adenopathy, satellite lesions, and subcutaneous nodules can be present.
- Ultrasound techniques classify nodules as solid or cystic in the belief that solid lesions might be malignant and cystic lesions benign.
- This produces a deeper infection, in the form of pustules and nodules.
- Her wrist and knee were warm, red, swollen, and tender, but she had no rashes or subcutaneous nodules.
- It tends to appear as a papule or nodule with an epithelialized, pearly appearance, but may ulcerate in some cases.
- Metastases from cutaneous melanoma normally present as flesh coloured papules or nodules in the skin.
- These papules or nodules develop in areas that the patient can reach.
- Except for her purulent, multifocal, subcutaneous nodules, she was generally in good health.
- The most severe form of leprosy produces large disfiguring nodules, or lumps.
- Leprosy is associated with symmetric skin lesions, nodules, plaques, and a thickened dermis.
- The most common presentation for thyroid or salivary gland cancer is an asymptomatic nodule within the gland.
Synonyms growth, lump, swelling, protuberance, protrusion, knob, outgrowth - 1.1 A swelling on a root of a leguminous plant, containing nitrogen-fixing bacteria.
Example sentencesExamples - In return, the plant shelters and nourishes the bacterium inside root nodules, where nitrogen fixation occurs.
- Nitrogen-fixing bacteria in the root nodules of leguminous plants (such as peas and clover) take in nitrogen direct from the air and pass it on to the plant, both feeding the plant and enriching the soil.
- From this point on, the bacteria and the plant - members of two separate kingdoms - share the know-how and labor needed to construct what is essentially a new organ: a fully operational nitrogen-fixing root nodule.
- Rhizobial bacteria generally enter roots of legumes via root-hairs and induce the formation of root nodules.
- This interaction culminates in the formation of root nodules and in the differentiation of bacteria into bacteroids, which are capable of reducing atmospheric nitrogen into ammonia.
2A small rounded lump of matter distinct from its surroundings, e.g. of flint in chalk, carbon in cast iron, or a mineral on the seabed. in the coal pits nodules of iron ore were mined Example sentencesExamples - The minute copper particles are concentrated in bands or zones in the center of the nodules as well as near the edges.
- Individual nodules range from a fraction of an inch to more than 14 inches across.
- The most persistent bed of nodules is found in the Late Devonian Huron Shale.
- Many of the nodules contain copper inclusions and, rarely, silver inclusions.
- This type of digging yielded hundreds of nodules for area collectors and rock shops.
- Once dry, the individual nodules are immersed in water, causing much of the clay to fall away.
- Crystals of brown sphalerite are found in fractures and on the surfaces of some chert nodules.
- The most highly prized datolites have concentrated copper inclusions near the center of the nodule and are pinkish-gray in color.
- A few people still poke around what is left of the mine dumps, but a datolite nodule is rarely found.
- It is more visible when there are beds rich in clays, shell layers, or flints nodules.
- On a second trip to the same area, additional nodules were recovered that exhibited the same dull colors.
- It has been estimated by some collectors that tons of the nodules were recovered from this dump.
- In these steep underwater cliff areas were chimneys of gravel that contained datolite nodules.
- The sediment was cemented with iron carbonate to form a hard nodule distinct from the shale around it.
- Others contain cores of malachite that constitute up to about 30 percent of the nodule.
- Turquoise here was found as vein fillings and nodules in weathered Precambrian granite.
- Historically, similar nodules were collected from the upper levels of the Centennial mine.
- Many of the early datolite nodules recovered were dark purple with a distinctive black rind.
- In recent years more of these nodules have been collected from the mine dump and a drift in the mine.
- Pyritic nodules, up to 1 cm in diameter, with internal radial structure, are abundant in the claystones.
Synonyms lump, bump, protuberance, projection, protrusion, bulge, swelling, knot, node, gnarl, growth, outgrowth, excrescence, carbuncle, tumour
Derivatives adjective ˈnɒdjʊləˈnɑdʒələr The involved arteries may be nodular, erythematous or swollen. Example sentencesExamples - The location of nodular lesions was evenly distributed.
- For example, nodular hyperplasia of the thyroid may present as perithyroidal nodules.
- The addition of magnesium to molten cast iron, to produce nodular iron, has been a routine practice for over 25 years.
- No bile ducts were involved in the nodular lesion.
- The most recent find was a spectacular nodular formation of green apophyllite on white petal-shaped stilbite, discovered last year.
adjective ˈnɒdjʊleɪtɪdˈnɑdʒəˌleɪdɪd (of a leguminous plant or its root) having swellings on the root which contain nitrogen-fixing bacteria. Example sentencesExamples - Roots of individual plants were visually classified into two groups: nodulated and nonnodulated, as previously described.
- Soon after flowering and pod set, if soil residual nitrogen is low and plants are poorly nodulated, nitrogen deficiency symptoms may appear.
- In good conditions, a well nodulated soybean plant should have five to seven nodules on the tap root two weeks after emergence or twelve nodules per inch of tap root at flowering.
noun ˌnɒdjʊˈleɪʃ(ə)n However, root nodules do not use nitrogen gas efficiently in the presence of a significant level of nitrate in the soil, because nitrate inhibits nodulation and nitrogenase activity. Example sentencesExamples - As always, when investigating nodulation in fields, it is extremely important to remember the high variability that occurs across years, water levels, and soil types.
- The level of nitrate supply was chosen to limit, but not suppress, nodulation and symbiotic nitrogen fixation.
adjective ˈnɒdjʊləʊsˈnɑdʒəloʊs Microscopically, this type of mushroom is easily distinguished by its nodulose spores. Example sentencesExamples - In addition, the nodulose surface strip is a relatively inexpensive item that can easily be replaced when worn out.
- This is a small, very deep water species, readily identified by the nodulose ribs on the shell.
- Moreover, nodulose specimens were smaller and weighed less compared to smooth ones.
adjective The shell surface of the periwinkle can be smooth or nodulous. Example sentencesExamples - It may also damage nerves in the face, arms and legs and lead to clawed hands, a nodulous swollen face, or sores on the hands and feet.
- Sediment structures are characterized by the extreme abundance of roots and nodulous or irregular laminations.
Origin Late Middle English: from Latin nodulus, diminutive of nodus 'knot'. Definition of nodule in US English: nodulenounˈnäjo͞olˈnɑdʒul 1A small swelling or aggregation of cells in the body, especially an abnormal one. the area feels firm but has irregular nodules which can be painful to touch laparotomy showed white nodules in the liver Example sentencesExamples - The most common presenting lesions are papules, vesicles, pustules, and nodules.
- Ultrasound techniques classify nodules as solid or cystic in the belief that solid lesions might be malignant and cystic lesions benign.
- Endoscopy evaluation revealed an antral nodule, which was biopsied.
- Metastases from cutaneous melanoma normally present as flesh coloured papules or nodules in the skin.
- The subcutaneous nodule, 1.7 cm across, was excised under local anaesthetic.
- She already had hepatic involvement, and the subcutaneous nodules spread over the whole of her trunk.
- A thyroid nodule is a palpable swelling in a thyroid gland with an otherwise normal appearance.
- It tends to appear as a papule or nodule with an epithelialized, pearly appearance, but may ulcerate in some cases.
- These papules or nodules develop in areas that the patient can reach.
- This produces a deeper infection, in the form of pustules and nodules.
- Her wrist and knee were warm, red, swollen, and tender, but she had no rashes or subcutaneous nodules.
- Except for her purulent, multifocal, subcutaneous nodules, she was generally in good health.
- The most severe form of leprosy produces large disfiguring nodules, or lumps.
- Rashes with purpura, urticaria, and subcutaneous nodules are common.
- A computed tomography scan showed multiple nodules in the liver and bilateral pulmonary metastasis.
- The clinical significance of these small nodules of Langerhans cells is not fully understood.
- Leprosy is associated with symmetric skin lesions, nodules, plaques, and a thickened dermis.
- This is seen in longstanding sarcoidosis, in which asymptomatic, violaceous nodules are seen on nose, fingers, and ears.
- The most common presentation for thyroid or salivary gland cancer is an asymptomatic nodule within the gland.
- Computed tomography showed a solitary nodule in the right lobe of the liver.
- Regional adenopathy, satellite lesions, and subcutaneous nodules can be present.
Synonyms growth, lump, swelling, protuberance, protrusion, knob, outgrowth - 1.1 A swelling on a root of a leguminous plant, containing nitrogen-fixing bacteria.
Example sentencesExamples - Rhizobial bacteria generally enter roots of legumes via root-hairs and induce the formation of root nodules.
- This interaction culminates in the formation of root nodules and in the differentiation of bacteria into bacteroids, which are capable of reducing atmospheric nitrogen into ammonia.
- In return, the plant shelters and nourishes the bacterium inside root nodules, where nitrogen fixation occurs.
- Nitrogen-fixing bacteria in the root nodules of leguminous plants (such as peas and clover) take in nitrogen direct from the air and pass it on to the plant, both feeding the plant and enriching the soil.
- From this point on, the bacteria and the plant - members of two separate kingdoms - share the know-how and labor needed to construct what is essentially a new organ: a fully operational nitrogen-fixing root nodule.
2A small rounded lump of matter distinct from its surroundings, for example, of flint in chalk, carbon in cast iron, or a mineral on the seabed. in the coal pits nodules of iron ore were mined Example sentencesExamples - The sediment was cemented with iron carbonate to form a hard nodule distinct from the shale around it.
- The most persistent bed of nodules is found in the Late Devonian Huron Shale.
- This type of digging yielded hundreds of nodules for area collectors and rock shops.
- It is more visible when there are beds rich in clays, shell layers, or flints nodules.
- The minute copper particles are concentrated in bands or zones in the center of the nodules as well as near the edges.
- Once dry, the individual nodules are immersed in water, causing much of the clay to fall away.
- In recent years more of these nodules have been collected from the mine dump and a drift in the mine.
- It has been estimated by some collectors that tons of the nodules were recovered from this dump.
- In these steep underwater cliff areas were chimneys of gravel that contained datolite nodules.
- Crystals of brown sphalerite are found in fractures and on the surfaces of some chert nodules.
- Many of the nodules contain copper inclusions and, rarely, silver inclusions.
- Pyritic nodules, up to 1 cm in diameter, with internal radial structure, are abundant in the claystones.
- Others contain cores of malachite that constitute up to about 30 percent of the nodule.
- Many of the early datolite nodules recovered were dark purple with a distinctive black rind.
- A few people still poke around what is left of the mine dumps, but a datolite nodule is rarely found.
- Historically, similar nodules were collected from the upper levels of the Centennial mine.
- Individual nodules range from a fraction of an inch to more than 14 inches across.
- On a second trip to the same area, additional nodules were recovered that exhibited the same dull colors.
- The most highly prized datolites have concentrated copper inclusions near the center of the nodule and are pinkish-gray in color.
- Turquoise here was found as vein fillings and nodules in weathered Precambrian granite.
Synonyms lump, bump, protuberance, projection, protrusion, bulge, swelling, knot, node, gnarl, growth, outgrowth, excrescence, carbuncle, tumour
Origin Late Middle English: from Latin nodulus, diminutive of nodus ‘knot’. |