| 单词 | natural object |
| 释义 | natural object (once / 7103 pages) n WORD FAMILY natural object: natural objects USAGE EXAMPLESSAT Seasonal art projects using recycled materials and natural objects to create winter decorations, holiday ornaments, table centerpieces, for all ages, 10 a.m. Seattle Times(Dec 08, 2016) But there are many other reasons for natural objects to give off radio waves. Carl Sagan, Cosmos(1980) Encourage your kids to look for wildlife or wildflowers, or set up a scavenger hunt for natural objects in different colors and shapes. US News(May 09, 2016) n an object occurring naturally; not made by man Ant|Exp|Hypo|Hyper artefact, artifact a man-made object taken as a whole Plymouth Rock a boulder in Plymouth supposed to be where the Pilgrims disembarked from the Mayflower Aldebaranthe brightest star in Taurus Algolthe second brightest star in Perseus; the first known eclipsing binary Alpha Centauribrightest star in Centaurus; second nearest star to the sun Alpha Crucisthe brightest star in the Southern Cross Altairdouble star 15.7 light years from Earth; the brightest star in the Aquila constellation Andromedaa constellation in the northern hemisphere between Cassiopeia and Pegasus; contains the Andromeda galaxy Antaresthe brightest star in Scorpius Antliaa faint constellation in the southern hemisphere near Hydra and Vela Apollo asteroidan asteroid whose orbit crosses the Earth's orbit Apusa constellation in the polar region of the southern hemisphere near Octans Aquariusa zodiacal constellation in the southern hemisphere; between Capricornus and Pisces Aquilaa constellation in the Milky Way near Cygnus; contains the star Altair Araa constellation in the southern hemisphere near Telescopium and Norma Arcturusthe 4th brightest star and the brightest star in the constellation Bootes; 36 light-years from Earth Argoformerly a large constellation in the southern hemisphere between Canis Major and the Southern Cross; now divided into Carina and Pyxis and Puppis and Vela Ariesa small zodiacal constellation in the northern hemisphere; between Pisces and Taurus Charioteera conspicuous constellation in the northern hemisphere; between Great Bear and Orion at edge of Milky Way Beta Centaurithe second brightest star in Centaurus Beta Crucisthe second brightest star in the Southern Cross Alpha Orionisthe second brightest star in Orion Charles's Waina group of seven bright stars in the constellation Ursa Major Bootesa constellation in the northern hemisphere near Ursa Major Caeluma constellation in the southern hemisphere near Columba and Eridanus Callistothe second largest of Jupiter's satellites Cancera small zodiacal constellation in the northern hemisphere; between Leo and Gemini Canis Majora constellation to the southeast of Orion; contains Sirius Canis Minora constellation to the east of Orion; contains Procyon Canopussupergiant star 650 light years from Earth; second brightest star in the sky Capellathe brightest star in Auriga Capricornusa faint zodiacal constellation in the southern hemisphere; between Sagittarius and Aquarius Carinaa keel-shaped constellation in the southern hemisphere; contains the start Canopus Cassiopeiaa W-shaped constellation in the northern hemisphere near Polaris Alpha Geminoruma multiple star with 6 components; second brightest in Gemini; close to Pollux Centaurusa conspicuous constellation in the southern hemisphere near the Southern Cross Cepheusa faint constellation in the northern hemisphere near Cassiopeia and the pole star Ceresthe largest asteroid and the first discovered Cetusa large constellation on the equator near Pisces and Aquarius Chamaeleona faint constellation in the polar region of the southern hemisphere near Apus and Mensa Circinusa small faint constellation in the southern hemisphere near Musca and Triangulum Australe Columbaa constellation in the southern hemisphere near Puppis and Caelum Coma Berenicesa constellation in the northern hemisphere between Ursa Major and Bootes; contains a cluster of some 10,000 galaxies Corona Borealisa small constellation in the northern hemisphere between Bootes and Hercules Corvusa small quadrilateral constellation in the southern hemisphere near Virgo Crab Nebulaa remnant of a supernova detected first in 1054 AD Cratera faint constellation in the southern hemisphere near Hydra and Corvus Cygnusa constellation in the northern hemisphere between Pegasus and Draco in the Milky Way; contains a black hole Deimosthe outer of two small satellites of Mars Delphinusa constellation in the northern hemisphere near Pegasus and Aquila Denebthe brightest star in Cygnus Denebolaa star in Leo approximately 43 light years from Earth Doradoa constellation in the southern hemisphere near Reticulum and Pictor; contains most of the Large Magellanic Cloud Dragona faint constellation twisting around the north celestial pole and lying between Ursa Major and Cepheus Earththe 3rd planet from the sun; the planet we live on Epsilon Aurigaethe largest known star Eridanusa constellation in the southern hemisphere near Fornax and Cetus Europathe 4th largest of Jupiter's satellites; covered with a smooth shell of frozen water evening stara planet (usually Venus) seen at sunset in the western sky Fornaxa faint constellation in the southern hemisphere near Cetus and Phoenix Ganymedethe largest of Jupiter's satellites Geminia zodiacal constellation in the northern hemisphere between Taurus and Cancer on the ecliptic Great Beara constellation outside the zodiac that rotates around the North Star Cranea small constellation in the southern hemisphere near Phoenix Herculesa large constellation in the northern hemisphere between Lyra and Corona Borealis Hydraa long faint constellation in the southern hemisphere near the equator stretching between Virgo and Cancer Hydrusa constellation in the southern hemisphere near the south celestial pole Indusa faint constellation in the southern hemisphere near Telescopium and Tucana Iothe closest of Jupiter's moons; has active volcanoes Jupiterthe largest planet and the 5th from the sun; has many satellites and is one of the brightest objects in the night sky Leoa zodiacal constellation in northern hemisphere between Cancer and Virgo Lepusa constellation in the southern hemisphere near Orion and Columba Libraa small faint zodiacal constellation in the southern hemisphere; between Virgo and Scorpius Little Beara constellation outside the zodiac that rotates around the North Star Little Dippera cluster of seven stars in Ursa Minor; at the end of the dipper's handle is Polaris Lupusa constellation in the southern hemisphere near Centaurus Lyraa small constellation in the northern hemisphere near Cygnus and Draco; contains the star Vega Red Planeta small reddish planet that is the 4th from the sun and is periodically visible to the naked eye; minerals rich in iron cover its surface and are responsible for its characteristic color Mensaa faint constellation in the polar region of the southern hemisphere and containing part of the Large Magellanic Cloud Mercurythe smallest planet and the nearest to the sun Microscopiuma faint constellation in the southern hemisphere near Sagittarius and Capricornus Moonthe natural satellite of the Earth Muscaa small constellation in the polar region of the southern hemisphere near the Southern Cross and Chamaeleon Neptunea giant planet with a ring of ice particles; the 8th planet from the sun is the most remote of the gas giants Normaa small constellation in the southern hemisphere near Lupus and Ara in the Milky Way Octansthe constellation that includes the southern celestial pole Ophiuchusa large constellation in the equatorial region between Hercules and Scorpius Huntera constellation on the equator to the east of Taurus; contains Betelgeuse and Rigel Pallasa large asteroid; the second asteroid to be discovered Pavoa small constellation near the South Pole between Tucana and Ara Pegasusa constellation in the northern hemisphere near Andromeda and Pisces Perseusa conspicuous constellation in the northern hemisphere; between Auriga and Cassiopeia and crossed by the Milky Way Phobosthe larger of the two satellites of Mars Phoenixa constellation in the southern hemisphere near Tucana and Sculptor Pictora constellation in the southern hemisphere near Dorado and Columba Piscesa large faint zodiacal constellation; between Aquarius and Aries Plutoa small planet and the farthest known planet from the sun; it has the most elliptical orbit of all the planets North Starthe brightest star in Ursa Minor; at the end of the handle of the Little Dipper; the northern axis of the earth points toward it Polluxthe brightest star in Gemini; close to Castor Procyonthe brightest star in Canis Minor Puppisa constellation in the southern hemisphere between Vela and Canis Major that shaped like the stern of a boat Pyxisa constellation in the southern hemisphere near Puppis and Antlia Quaoara planetoid discovered in 2002 Regulusthe brightest star in Leo Reticuluma small constellation in the southern hemisphere near Dorado and Hydrus Beta Orionisthe brightest star in Orion Sagittaa small constellation in the northern hemisphere between Cygnus and Aquila and crossed by the Milky Way Sagittariusa large zodiacal constellation in the southern hemisphere; between Scorpius and Capricornus Saturna giant planet that is surrounded by three planar concentric rings of ice particles; the 6th planet from the sun Scorpiusa large zodiacal constellation between Libra and Sagittarius Sculptora faint constellation in the southern hemisphere near Phoenix and Cetus Sednaa planetoid of rock and ice about three-quarters the size of Pluto discovered in 2003; the most distant object known to orbit around the sun Serpensa constellation in the equatorial region of the northern hemisphere near Ophiuchus and Corona Borealis Caniculathe brightest star in the sky; in Canis Major Crux Australisa small conspicuous constellation in the southern hemisphere in the Milky Way near Centaurus Spicathe brightest star in Virgo Asteropeone of the stars in the star cluster Pleiades Sunthe star that is the source of light and heat for the planets in the solar system Taurusa zodiacal constellation in the northern hemisphere near Orion; between Aries and Gemini Telescopiuma small constellation in the southern hemisphere near Ara Titanthe largest of the satellites of Saturn; has a hazy nitrogen atmosphere Trianguluma small northern constellation near Perseus between Andromeda and Aries Triangulum Australea small bright constellation in the polar region of the southern hemisphere near Circinus and Apus Tritonthe largest moon of Neptune Tucanaa large faint constellation in the southern hemisphere containing most of the Small Magellanic Cloud Uranusa giant planet with a ring of ice particles; the 7th planet from the sun has a blue-green color and many satellites Vegathe brightest star in the constellation Lyra Velaa constellation in the southern hemisphere between Carina and Pyxis Venusthe second nearest planet to the sun; it is peculiar in that its rotation is slow and retrograde (in the opposite sense of the Earth and all other planets except Uranus); it is visible from Earth as an early `morning star' or an `evening star' Vestathe brightest asteroid but the fourth to be discovered Virgoa large zodiacal constellation on the equator; between Leo and Libra Volansa small constellation in the polar region of the southern hemisphere near Dorado and Carina Vulpeculaa constellation in the northern hemisphere near Cygnus and Sagitta Proxima Centaurithe nearest star to the sun; distance: 4.3 light years cocoon silky envelope spun by the larvae of many insects to protect pupas and by spiders to protect eggs body, organic structure, physical structurethe entire structure of an organism (an animal, plant, or human being) body, dead bodya natural object consisting of a dead animal or person asterism(astronomy) a cluster of stars (or a small constellation) black body, blackbody, full radiatora hypothetical object capable of absorbing all the electromagnetic radiation falling on it bodyan individual 3-dimensional object that has mass and that is distinguishable from other objects carpeta natural object that resembles or suggests a carpet celestial body, heavenly bodynatural objects visible in the sky consolidationsomething that has consolidated into a compact mass constellationa configuration of stars as seen from the earth cover, covering, natural coveringa natural object that covers or envelops estraterrestrial body, extraterrestrial objecta natural object existing outside the earth and outside the earth's atmosphere mechanisma natural object resembling a machine in structure or function nesta structure in which animals lay eggs or give birth to their young radiatorany object that radiates energy rock, stonea lump or mass of hard consolidated mineral matter sampleall or part of a natural object that is collected and preserved as an example of its class tanglea twisted and tangled mass that is highly interwoven cosmos, creation, existence, macrocosm, universe, worldeverything that exists anywhere plant part, plant structureany part of a plant or fungus carcase, carcassthe dead body of an animal especially one slaughtered and dressed for food carrionthe dead and rotting body of an animal; unfit for human food roadkillthe dead body of an animal that has been killed on a road by a vehicle scalea flattened rigid plate forming part of the body covering of many animals shellthe hard largely calcareous covering of a mollusc or a brachiopod testa hard outer covering as of some amoebas and sea urchins life formthe characteristic bodily form of a mature organism anatomy, bod, build, chassis, figure, flesh, form, frame, human body, material body, physical body, physique, shape, somaalternative names for the body of a human being cadaver, clay, corpse, remains, stiffthe dead body of a human being mummya body embalmed and dried and wrapped for burial (as in ancient Egypt) live bodythe body of a living animal or person body coveringany covering for the body or a body part case, sheathan enveloping structure or covering enclosing an animal or plant organ or part integumentan outer protective covering such as the skin of an animal or a cuticle or seed coat or rind or shell specimena bit of tissue or blood or urine that is taken for diagnostic purposes chromosomea threadlike strand of DNA in the cell nucleus that carries the genes in a linear order achondritea stony meteor lacking chondrules barrieranything serving to maintain separation by obstructing vision or access bedrocksolid unweathered rock lying beneath surface deposits of soil beehive, hivea structure that provides a natural habitation for bees; as in a hollow tree bird nest, bird's nest, birdnestnest where birds lay their eggs and hatch their young blanket, mantleanything that covers boulder, bowldera large smooth mass of rock detached from its place of origin calculus, concretiona hard lump produced by the concretion of mineral salts; found in hollow organs or ducts of the body chondritea rock of meteoric origin containing chondrules clastic rock(geology) a rock composed of broken pieces of older rocks closed universe(cosmology) a universe that is spatially closed and in which there is sufficient matter to halt the expansion that began with the big bang; the visible matter is only 10 percent of the matter required for closure but there may be large amounts of dark matter comet(astronomy) a relatively small extraterrestrial body consisting of a frozen mass that travels around the sun in a highly elliptical orbit corea cylindrical sample of soil or rock obtained with a hollow drill crust, encrustation, incrustationa hard outer layer that covers something crystal, crystallizationa rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces dreythe nest of a squirrel envelopea natural covering (as by a fluid) hair ball, hairball, trichobezoara compact mass of hair that forms in the alimentary canal (especially in the stomach of animals as a result of licking fur) cap, hooda protective covering that is part of a plant cellular inclusion, inclusion, inclusion bodyany small intracellular body found within another (characteristic of certain diseases) indument, indumentuma covering of fine hairs (or sometimes scales) as on a leaf or insect intrusionrock produced by an intrusive process massa body of matter without definite shape meteor, meteoroid(astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere minor planet, planetoidany of numerous small celestial bodies that move around the sun mouse nest, mouse's nestwhere mice bear and raise their young natural orderthe physical universe considered as an orderly system subject to natural (not human or supernatural) laws naturethe natural physical world including plants and animals and landscapes etc. nidusa nest in which spiders or insects deposit their eggs outcrop, outcropping, rock outcropthe part of a rock formation that appears above the surface of the surrounding land particle, subatomic particlea body having finite mass and internal structure but negligible dimensions pebblea small smooth rounded rock petrifactiona rock created by petrifaction; an organic object infiltrated with mineral matter and preserved in its original form major planet, planet(astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected light; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto in order of their proximity to the sun; viewed from the constellation Hercules, all the planets rotate around the sun in a counterclockwise direction planetany celestial body (other than comets or satellites) that revolves around a star planetesimalone of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system primary(astronomy) a celestial body (especially a star) relative to other objects in orbit around it quasar, quasi-stellar radio sourcea starlike object that may send out radio waves and other forms of energy; many have large red shifts radio sourcean object that radiates radio waves roofthe inner top surface of a covered area or hollow space satelliteany celestial body orbiting around a planet or star shaga matted tangle of hair or fiber shella rigid covering that envelops an object eggshell, shellthe exterior covering of a bird's egg sill(geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock skima thin layer covering the surface of a liquid sloughany outer covering that can be shed or cast off (such as the cast-off skin of a snake) snowcapa covering of snow (as on a mountain peak) star(astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior starany celestial body visible (as a point of light) from the Earth at night stepping stonea stone in a marsh or shallow water that can be stepped on in crossing stuba short piece remaining on a trunk or stem where a branch is lost tora prominent rock or pile of rocks on a hill transmission mechanismany mechanism whereby an infectious agent is spread from a reservoir to a human being vesturesomething that covers or cloaks like a garment wall rocka rock immediately adjacent to a vein or fault whin, whinstoneany of various hard colored rocks (especially rocks consisting of chert or basalt) xenolith(geology) a piece of rock of different origin from the igneous rock in which it is embedded buttonany of various plant parts that resemble buttons thallusa plant body without true stems or roots or leaves or vascular system; characteristic of the thallophytes cap, pileusa fruiting structure resembling an umbrella or a cone that forms the top of a stalked fleshy fungus such as a mushroom calyptrathe hood or cap covering the calyx of certain plants: e.g., the California poppy volvacuplike structure around the base of the stalk of certain fungi peridiumouter layer of the spore-bearing organ in many fungi domatiuma part of a plant (e.g., a leaf) that has been modified to provide protection for insects or mites or fungi pycnidiumflask-shaped asexual structure containing conidia stipulea small leafy outgrowth at the base of a leaf or its stalk; usually occurring in pairs and soon shed tepalan undifferentiated part of a perianth that cannot be distinguished as a sepal or a petal (as in lilies and tulips) gynostegiumthe crown of the stamen in plants of the genus Asclepias chalazabasal part of a plant ovule opposite the micropyle; where integument and nucellus are joined nucelluscentral part of a plant ovule; contains the embryo sac germ tube(botany) a slender tubular outgrowth from a spore in germination pollen tube(botany) a slender tubular outgrowth from a pollen grain when deposited on the stigma for a flower; it penetrates the style and conveys the male gametes to the ovule pericarp, seed vesselthe ripened and variously modified walls of a plant ovary mentuma projection like a chin formed by the sepals and base of the column in some orchids corona(botany) the trumpet-shaped or cup-shaped outgrowth of the corolla of a daffodil or narcissus flower lip(botany) either of the two parts of a bilabiate corolla or calyx chlamys, floral envelope, perianth, perigone, perigoniumcollective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils myceliumthe vegetative part of a fungus consisting of a mass of branching threadlike hyphae plant organa functional and structural unit of a plant or fungus arilfleshy and usually brightly colored cover of some seeds that develops from the ovule stalk and partially or entirely envelopes the seed ducta continuous tube formed by a row of elongated cells lacking intervening end walls sac, thecaa case or sheath especially a pollen sac or moss capsule indusiuma membrane enclosing and protecting the developing spores especially that covering the sori of a fern veil, veluma membranous covering attached to the immature fruiting body of certain mushrooms annulus, skirt(Fungi) a remnant of the partial veil that in mature mushrooms surrounds the stem like a collar plant tissuethe tissue of a plant tendrilslender stem-like structure by which some twining plants attach themselves to an object for support stump, tree stumpthe base part of a tree that remains standing after the tree has been felled prophylla plant structure resembling a leaf stocka plant or stem onto which a graft is made; especially a plant grown specifically to provide the root part of grafted plants receptacleenlarged tip of a stem that bears the floral parts kernel, meatthe inner and usually edible part of a seed or grain or nut or fruit stone lobe(botany) a part into which a leaf is divided ligule(botany) any appendage to a plant that is shaped like a strap barktough protective covering of the woody stems and roots of trees and other woody plants biological clockan innate mechanism in living organisms that controls the periodicity of many physiological functions unit, whole an assemblage of parts that is regarded as a single entity |
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