subtend

verb

sub·tend səb-ˈtend How to pronounce subtend (audio)

subtended; subtending; subtends

transitive verb

: to be opposite to and extend from one side to the other of

a hypotenuse subtends a right angle

: to fix the angular extent of with respect to a fixed point or object taken as the vertex

a central angle subtended by an arc

the angle subtended at the eye by an object of given width and a fixed distance away

: to determine the measure of by marking off the endpoints of

a chord subtends an arc

: to underlie so as to include

: to occupy an adjacent and usually lower position to and often so as to embrace or enclose

a bract that subtends a flower

Example Sentences

Recent Examples on the Web Before 1967, political borders, however provisional, subtended cultural ones: sovereignty derived from international recognition and the consent of the governed.

Bernard Avishai, The New Yorker, 5 June 2017

Word History

Etymology

Latin subtendere to stretch beneath, from sub- + tendere to stretch — more at thin

First Known Use

circa 1560, in the meaning defined at sense 1a

单词	subtend
释义	subtend verb sub·tend səb-ˈtend subtended; subtending; subtends transitive verb 1 a : to be opposite to and extend from one side to the other of a hypotenuse subtends a right angle b : to fix the angular extent of with respect to a fixed point or object taken as the vertex a central angle subtended by an arc the angle subtended at the eye by an object of given width and a fixed distance away c : to determine the measure of by marking off the endpoints of a chord subtends an arc 2 a : to underlie so as to include b : to occupy an adjacent and usually lower position to and often so as to embrace or enclose a bract that subtends a flower Example Sentences Recent Examples on the Web Before 1967, political borders, however provisional, subtended cultural ones: sovereignty derived from international recognition and the consent of the governed. Bernard Avishai, The New Yorker, 5 June 2017 Word History Etymology Latin subtendere to stretch beneath, from sub- + tendere to stretch — more at thin First Known Use circa 1560, in the meaning defined at sense 1a
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