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crater
Cra·ter C0729000 (krā′tər)n. A constellation in the Southern Hemisphere near Hydra and Corvus.
[Latin crātēr, mixing bowl, crater; see crater.]
cra·ter C0729000 (krā′tər)n.1. A bowl-shaped depression created by the activity of a volcano or geyser.2. a. A bowl-shaped depression in a surface made by an explosion or the impact of a body, such as a meteoroid.b. A pit; a hollow.3. Variant of krater.v. cra·tered, cra·ter·ing, cra·ters v.tr. To make craters in: "The missiles did not ... crater the airfield" (Tom Clancy).v.intr.1. To form a crater or craters.2. Slang a. To fall and crash violently from a great height.b. To fail utterly: "talked about how tough times were in Texas since the oil business cratered" (Stephen Coonts).
[Latin crātēr, from Greek krātēr, mixing vessel; see kerə- in Indo-European roots.]crater (ˈkreɪtə) n1. (Geological Science) the bowl-shaped opening at the top or side of a volcano or top of a geyser through which lava and gases are emitted2. (Physical Geography) a similarly shaped depression formed by the impact of a meteorite or exploding bomb3. (Astronomy) any of the circular or polygonal walled formations covering the surface of the moon and some other planets, formed probably either by volcanic action or by the impact of meteorites. They can have a diameter of up to 240 kilometres (150 miles) and a depth of 8900 metres (29 000 feet)4. a pit in an otherwise smooth surface5. (Archaeology) a large open bowl with two handles, used for mixing wines, esp in ancient Greecevb6. (Geological Science) to make or form craters in (a surface, such as the ground)7. slang to fail; collapse; crash[C17: from Latin: mixing bowl, crater, from Greek kratēr, from kerannunai to mix] ˈcratered adj ˈcraterless adj ˈcrater-ˌlike adj
Crater (ˈkreɪtə) n, Latin genitive Crateris (ˈkreɪtərɪs) (Astronomy) a small faint constellation in the S hemisphere lying between Virgo and Hydracra•ter (ˈkreɪ tər)
n., v. -tered, -ter•ing. n. 1. the cup-shaped depression or cavity on the surface of the earth or other heavenly body marking the orifice of a volcano. 2. (on the surface of the earth, moon, etc.) a bowl-shaped depression with a raised rim, formed by the impact of a meteoroid. 3. the hole in the ground where a bomb, shell, or military mine has exploded. 4. krater. v.t. 5. to make a crater or craters in. v.i. 6. to form a crater or craters. [1605–15; < Latin < Greek krātḗr mixing bowl, literally, mixer =krā-, base of kerannýnai to mix + -tēr agentive suffix] cra′ter•like`, adj. cra·ter (krā′tər)1. A bowl-shaped depression at the top of a volcano or at the mouth of a geyser. Volcanic craters can form because of magma explosions, in which a large amount of lava is thrown out from a volcano, leaving a hole, or because the roof of rock over an underground magma pool collapses after the magma has flowed away.2. A shallow, bowl-shaped hole in a surface, formed by an explosion or by the impact of a body, such as a meteorite.craterThe pit, depression, or cavity formed in the surface of the Earth by an explosion. It may range from saucer shaped to conical, depending largely on the depth of burst. In the case of a deep underground burst, no rupture of the surface may occur. The resulting cavity is termed a "camouflet."crater
Past participle: cratered
Gerund: cratering
| Present |
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| I crater | | you crater | | he/she/it craters | | we crater | | you crater | | they crater |
| Preterite |
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| I cratered | | you cratered | | he/she/it cratered | | we cratered | | you cratered | | they cratered |
| Present Continuous |
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| I am cratering | | you are cratering | | he/she/it is cratering | | we are cratering | | you are cratering | | they are cratering |
| Present Perfect |
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| I have cratered | | you have cratered | | he/she/it has cratered | | we have cratered | | you have cratered | | they have cratered |
| Past Continuous |
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| I was cratering | | you were cratering | | he/she/it was cratering | | we were cratering | | you were cratering | | they were cratering |
| Past Perfect |
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| I had cratered | | you had cratered | | he/she/it had cratered | | we had cratered | | you had cratered | | they had cratered |
| Future |
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| I will crater | | you will crater | | he/she/it will crater | | we will crater | | you will crater | | they will crater |
| Future Perfect |
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| I will have cratered | | you will have cratered | | he/she/it will have cratered | | we will have cratered | | you will have cratered | | they will have cratered |
| Future Continuous |
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| I will be cratering | | you will be cratering | | he/she/it will be cratering | | we will be cratering | | you will be cratering | | they will be cratering |
| Present Perfect Continuous |
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| I have been cratering | | you have been cratering | | he/she/it has been cratering | | we have been cratering | | you have been cratering | | they have been cratering |
| Future Perfect Continuous |
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| I will have been cratering | | you will have been cratering | | he/she/it will have been cratering | | we will have been cratering | | you will have been cratering | | they will have been cratering |
| Past Perfect Continuous |
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| I had been cratering | | you had been cratering | | he/she/it had been cratering | | we had been cratering | | you had been cratering | | they had been cratering |
| Conditional |
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| I would crater | | you would crater | | he/she/it would crater | | we would crater | | you would crater | | they would crater |
| Past Conditional |
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| I would have cratered | | you would have cratered | | he/she/it would have cratered | | we would have cratered | | you would have cratered | | they would have cratered |
Thesaurus| Noun | 1. |  crater - a bowl-shaped geological formation at the top of a volcanovolcanic cratercaldera - a large crater caused by the violent explosion of a volcano that collapses into a depressiongeological formation, formation - (geology) the geological features of the earthmaar - a flat-bottomed volcanic crater that was formed by an explosion; often filled with watervolcano - a mountain formed by volcanic material | | 2. | Crater - a faint constellation in the southern hemisphere near Hydra and Corvus | | 3. | crater - a bowl-shaped depression formed by the impact of a meteorite or bombcollector - a crater that has collected cosmic material hitting the earthlunar crater - a crater on the Earth's Moonnatural depression, depression - a sunken or depressed geological formation |
craternoun hollow, hole, depression, dip, cavity, shell hole A huge crater marks the spot where the explosion happened.Translationscrater (ˈkreitə) noun1. the bowl-shaped mouth of a volcano. 火山口 火山口2. a hollow made in the ground by a bomb etc. 彈坑 弹坑crater
crater facederogatory slang Someone with very bad acne or severe scarring therefrom. Sometimes hyphenated. I was a bit of a crater face in high school, but thankfully my face cleared up in college. Wow, a crater-face like you will never get a date to the dance!See also: crater, facecrater1. n. an acne scar. Walter was always sort of embarrassed about his craters. 2. in. to collapse and go down as with a falling stock price. The stock cratered and probably won’t recover for a year or two. crater-face and pizza-face and pizza-puss and zit-face n. a person with acne or many acne scars. (Intended as jocular. Rude and derogatory.) I gotta get some kind of medicine for these pimples. I’m getting to be a regular crater-face. I don’t want to end up a zit-face, but I love chocolate! Crater
crater, circular, bowl-shaped depression on the earth's surface. (For a discussion of lunar craters, see moonmoon,
natural satellite of a planet (see satellite, natural) or dwarf planet, in particular, the single natural satellite of the earth. The Earth-Moon System
The moon is the earth's nearest neighbor in space.
..... Click the link for more information. .) Simple craters are bowl-shaped with a raised outer rim. Complex craters have a raised central peak surrounded by a trough and a fractured rim. Many of the largest craters are formed by the impact of meteoritesmeteorite,
meteor that survives the intense heat of atmospheric friction and reaches the earth's surface. Because of the destructive effects of this friction, only the very largest meteors become meteorites.
..... Click the link for more information. . Impacting at speeds in excess of 10 mi/sec (16 km/sec), a meteorite creates pressures on the order of millions of atmospheres, producing shock waves that blast out a circular hole and often destroy the meteorite. Meteor, or Barringer, Crater, near Winslow, Arizona, c. 3-4 mi (1 1-5 km) in diameter and 600 ft (180 m) deep, is probably the best-known crater of this type. Of the 190 impact locations identified on earth, the largest craters by diameter (80 mi/130 km or greater) are at Vredefort, South Africa; and Chicxulub (off the coast of the Yucatán peninsula), Mexico. Others include Acraman Crater, South Australia; Brent Crater, Ontario; the Chesapeake Bay impact crater, Virginia; Chubb Crater, Quebec; Lake Bosumtwi, Ghana; and Manicouagan, Quebec; and Popigai Crater, Siberia. Two sizable impact events occurred in the 20th cent., both in Siberia. In 1908 in the Tunguska BasinTunguska Basin,
c.400,000 sq mi (1,036,000 sq km), Krasnoyarsk Territory and Sakha Republic, E central Siberian Russia, between the Yenisei and Lena rivers. It has a huge untapped coal reserve.
..... Click the link for more information. near Lake Baykal one occurred that caused vast destruction of timber from its blast, and the other in 1947 at Sikhote-Alin also caused great damage. Craters that have been obliterated by erosion over thousands of years, leaving only a circular scar on the earth's surface, are called astroblemesastrobleme
, large, circular structure ranging from c. 1-2 mi to 40 mi (.8–64 km) in diameter. Astroblemes are found at numerous places on the earth's surface, e.g., Meteor, or Barringer, Crater in Arizona, Brent Crater in Ontario, and Vredefort Ring in South Africa.
..... Click the link for more information. . The fractured rock of buried impact craters (e.g., Chicxulub) may become a trap for oil and natural gas. Craters are also commonly formed at the surface opening, or vent, of erupting volcanoesvolcano,
vents or fissures in the earth's crust through which gases, molten rock, or lava, and solid fragments are discharged. Their study is called volcanology. The term volcano
..... Click the link for more information. , particularly of the type called cinder cones, where the lava is extruded rather explosively. Virtually all volcanoes display a crater, called a sink, around the vent; this is believed to be a collapse feature caused by molten lava subsiding as an eruption phase diminishes. Volcanic craters formed in these ways are relatively small, usually less than 1 mi (1.6 km) in diameter, and represent only a small fraction of the cone's diameter at the base. A caldera is a much larger crater, typically ranging from 3 to 18 mi (5–30 km) in diameter, and represents a considerable fraction of the volcano's basal diameter. In a few instances, however, tremendous volcanic eruptions have left calderas 50 mi (80 km) or so, such as that that forms much of Yellowstone National Park or the basin of Lake Toba, Sumatra, Indonesia. Most calderas are formed by the collapse of the central part of a cone during great eruptions; the pressure that a caldera collapse produces on a magma chamber helps drive such eruptions. A few small calderas have been formed by explosive eruptions in which the top of a volcano was blown out. Some volcanic craters are created by a combination of these events. Formed thousands of years ago, the caldera that contains Crater Lake, Oreg., is 6 mi (9.7 km) in diameter. In recent times, caldera-producing eruptions occurred at Krakatoa, Indonesia, in 1883 and Katmai, Alaska, in 1912. See also tektitetektite
, naturally occurring, silica-rich (65%–80% SiO2) glass resembling obsidian and sometimes shale, and is normally jet black to olive green. They appear as small rounded or elongated objects that often have aerodynamic shapes and range from a fraction of
..... Click the link for more information. . Bibliography See P. Hodge, Meteorite Craters and Impact Structures of the Earth (1994). Crater (kray -ter) (Cup) A small inconspicuous constellation in the southern hemisphere near Leo, the brightest stars being of 3rd and 4th magnitude. Abbrev.: Crt; genitive form: Crateris; approx. position: RA 11.5h, dec –l5°; area: 282 sq deg.Crater a bowl- or funnel-shaped depression with a diameter measuring between dozens of meters and several kilometers and a depth from a few meters to hundreds of meters. Craters form during volcanic eruptions, as a result of the impact of meteorites, and as a result of large man-made explosions. Volcanic craters are usually located on the peaks or slopes of volcanoes. At the bottom of the crater are one or several vents through which lava and other volcanic products rising along an outlet channel from the magmatic center reach the surface. Sometimes the bottom of the crater is covered with a lake of lava or a small, newly formed volcanic cone. The craters on the moon and Mars are round depressions surrounded by circular ridges; their diameters are up to 100–200 km and they are up to several kilometers deep. A distinction is made among them between craters formed during the impact of meteorites and asteroids and craters of volcanic origin (similar to the earth's volcanic craters and calderas).
Crater (the Cup), a constellation of the southern hemisphere; its brightest star has a visual stellar magnitude of 3.6. The constellation is most easily viewed in March; it is visible from the central and southern regions of the USSR. (SeeSTELLAR SKY.) crater[′krād·ər] (geology) A large, bowl-shaped topographic depression with steep sides. A rimmed structure at the summit of a volcanic cone; the floor is equal to the vent diameter. (mechanical engineering) A depression in the face of a cutting tool worn down by chip contact. (metallurgy) A depression at the end of the weld head or under the electrode during welding.
Crater[′krād·ər] (astronomy) A constellation, right ascension 11 hours, declination 15°S. Abbreviated Crt. Also known as Cup. crater1. the bowl-shaped opening at the top or side of a volcano or top of a geyser through which lava and gases are emitted 2. a similarly shaped depression formed by the impact of a meteorite or exploding bomb 3. any of the circular or polygonal walled formations covering the surface of the moon and some other planets, formed probably either by volcanic action or by the impact of meteorites. They can have a diameter of up to 240 kilometres (150 miles) and a depth of 8900 metres (29 000 feet) 4. a large open bowl with two handles, used for mixing wines, esp in ancient Greece crater
crater [kra´ter] an excavated area surrounded by an elevated margin, such as is caused by ulceration.cra·ter (krā'ter), The most depressed, usually central portion of an ulcer.CRATER
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| CRATER➣Corpus Resources and Terminology Extraction |
crater
Synonyms for craternoun hollowSynonyms- hollow
- hole
- depression
- dip
- cavity
- shell hole
Synonyms for craternoun a bowl-shaped geological formation at the top of a volcanoSynonymsRelated Words- caldera
- geological formation
- formation
- maar
- volcano
noun a bowl-shaped depression formed by the impact of a meteorite or bombRelated Words- collector
- lunar crater
- natural depression
- depression
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