subtend
Americanverb (used with object)
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Geometry. to extend under or be opposite to.
a chord subtending an arc.
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Botany. (of a leaf, bract, etc.) to occur beneath or close to.
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to form or mark the outline or boundary of.
verb
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geometry to be opposite to and delimit (an angle or side)
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(of a bract, stem, etc) to have (a bud or similar part) growing in its axil
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to mark off
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to underlie; be inherent in
Etymology
Origin of subtend
1560–70; < Latin subtendere to stretch beneath, equivalent to sub- sub- + tendere to stretch; see tend 1
Vocabulary lists containing subtend
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.
The line with letters that subtend 5 minutes of an arc from 20 feet represents the smallest letters that a person with normal acuity should be able to read at that distance.
From Textbooks ● Jun. 19, 2013
For the side of the equilaterall triangle doth subtend 1/3 of the whole pheriphery.
From The Way To Geometry by Bedwell, William
The lesser Congo delta is bounded north by the Banana or Malela stream, whose lower fork is "Pirates' Creek;" and south by the mangrove-clad drains, which subtend the main line: the base measures 12-15 miles.
From Two Trips to Gorilla Land and the Cataracts of the Congo Volume 2 by Burton, Richard Francis, Sir
It is well known that the same extension at a near distance shall subtend a greater angle, and at a farther distance a lesser angle.
From A Essay Towards a New Theory of Vision by Berkeley, George
The motions they subtend are concerned with vital functions; nutrition, respiration, circulation, assimilation, elimination, reproduction.
From Feminism and Sex-Extinction by Kenealy, Arabella
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.
