高度の定義と意味 | Dictionary.com

ALTITUDE Definition & Meaning | Dictionary.com Synonyms altitude American [ al -ti-tood, -tyood] / ˈæl tɪˌtud, -ˌtyud / noun the height of anything above a given planetary reference plane, especially above sea level on earth. Synonyms: elevation extent or distance upward; height. Antonyms: depth Astronomy. the angular distance of a heavenly body above the horizon. Geometry. the perpendicular distance from the vertex of a figure to the side opposite the vertex. the line through the vertex of a figure perpendicular to the base. Usually altitudes. a high place or region. mountain altitudes. high or important position, rank, etc. altitude British / ˈæltɪˌtjuːd / noun the vertical height of an object above some chosen level, esp above sea level; elevation geometry the perpendicular distance from the vertex to the base of a geometrical figure or solid Also called: elevation . astronomy nautical the angular distance of a celestial body from the horizon measured along the vertical circle passing through the body Compare azimuth surveying the angle of elevation of a point above the horizontal plane of the observer (often plural) a high place or region "Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 altitude Scientific / ăl ′ tĭ-to̅o̅d′ / The height of an object or structure above a reference level, usually above sea level or the Earth's surface. Astronomy The position of a celestial object above an observer's horizon, measured in degrees along a line between the horizon (0°) and the zenith (90°). Unlike declination and celestial latitude —the corresponding points in other celestial coordinate systems—the altitude of star or other celestial object is dependent on an observer's geographic location and changes steadily as the sky passes overhead due to the rotation of the Earth. Astronomy See more at altazimuth coordinate system Mathematics The perpendicular distance from the base of a geometric figure, such as a triangle, to the opposite vertex, side, or surface. Related Words See height . Other Word Forms altitudinal adjective altitudinous adjective Etymology Origin of altitude First recorded in 1350–1400; Middle English, from Latin altitūdō; see origin at alti- , -tude Explanation 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 . Keep Reading on Vocabulary.com Vocabulary lists containing altitude Hatchet Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide! Flying High: Aviation Words Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use! ACT Vocabulary List Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time! Example Sentences Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com. Pilots are prohibited from operating drones above 400 feet altitude unless they have authorization from the FAA. From Los Angeles Times • Apr. 29, 2026 AST SpaceMobile, which is working to develop a space-based cellular broadband network, said in a statement that "the altitude is too low to sustain operations." From Barron's • Apr. 20, 2026 But the justices were not inclined to let him remain at that altitude for long. From Slate • Apr. 10, 2026 Most notably, they rounded off the group stage with a 1-0 home win over the Brazilians at altitude in September. From BBC • Apr. 9, 2026 I wonder: How do you show altitude on a flat map? From "Paradise on Fire" by Jewell Parker Rhodes Related Words distance elevation peak Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023 Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.