subtend

IPA: sˈʌbtɛnd

(transitive, mathematics) To use an angle to delimit (mark off, enclose) part of a straight or curved line, for example an arc or the opposite side of a triangle.
(transitive, also mathematics) To extend or stretch opposite something; to be part of a straight or curved line that is opposite to and delimits an angle.
(transitive, mathematics) To form the central angle of a circle underneath an arc

Examples of "subtend" in Sentences

Most red-dot sights offer dots that subtend either 4 minutes of angle at 100 yards, or 3 or 2 minutes.
And that this was not correct because these attractions all lie in the same direction and subtend a total of twelve degrees of arc.
The latter species is revered in China for its curious inflorescence in which bracts up to 30 centimeters (cm) long subtend the flowers.
Truly, the obsessions which subtend that novel are without a doubt the strongest of all those which run through my work, including Empire of the Sun.
Anyhow, when Blondie told me the range of the targets, I figured the difference between the two and realized what the subtend value was for the dots at that range.
D. involucrata is renown for the large bracts, up to 30 centimeters (cm) long, that subtend the base of the inflorescence, giving the tree in flower a very striking appearance.
The Body by Jenny Boully is a work of poetry, composed entirely of footnotes that subtend blank pages and comment upon an invisible, if not imaginary, text that allegedly occupies this poetic vacuum.
If, as the contextual theory also implies, observation-statements depend on theoretical principles, any inadequacy in these principles will be transmitted to the observation-statements they subtend, whence our beliefs about what is observed may be in error, and even our experiences themselves can be criticised for giving only an approximate account of what is going on in reality.