单词 | altitude |
释义 | altitude (once / 937 pages) n The noun altitude refers to how high something rises: “The high altitude of the Himalayan mountain range slowed the progress of the hikers.” Whether it refers to how high a plane is flying or to the height of a landform, the word altitude is used to describe an object’s elevation above a particular reference point. Altitude is typically measured from sea level, which is the average level of the sea’s surface. Something that is far above sea level — such as Mount Everest — is said to have a high altitude. Something closer to the ground — such as a plane approaching for landing — is said to have a low altitude. WORD FAMILYaltitude: altitudes, altitudinal, altitudinous USAGE EXAMPLESThe flight was in the air for a total of 70 seconds and reached an altitude of 820 feet, Bainetov said Thursday. Washington Post(Dec 29, 2016) Two years ago, Dr. Nielsen and other researchers identified another Denisovan gene, in Tibetans, that helps them use oxygen efficiently at high altitudes. New York Times(Dec 23, 2016) They herd llamas and goats on arid land, knit Andean hats for extra money and chew coca leaves to fight off the altitude’s dizzying effects. Washington Post(Dec 19, 2016) 1n elevation especially above sea level or above the earth's surface the altitude gave her a headache Syn|Hypo|Hyper height level height above ground ceiling(meteorology) altitude of the lowest layer of clouds ceilingmaximum altitude at which a plane can fly (under specified conditions) absolute ceilingthe maximum altitude at which an airplane can maintain horizontal flight combat ceiling, service ceilingaltitude above which a plane cannot climb faster than a given rate elevation distance of something above a reference point (such as sea level) 2n angular distance above the horizon (especially of a celestial object) Syn|Hyper ALT, EL, elevation angular position relation by which any position with respect to any other position is established 3n the perpendicular distance from the base of a geometric figure to the opposite vertex (or side if parallel) Hyper distance, length size of the gap between two places |
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