Definitions for: Subtend

[v] be opposite to; of angles and sides, in geometry

Webster (1913) Definition: Sub*tend", v. t. [imp. & p. p. Subtended; p. pr. &
vb. n. Subtending.] [L. subtendere; sub under + tendere to
stretch, extend. See Tend.]
To extend under, or be opposed to; as, the line of a triangle
which subtends the right angle; the chord subtends an arc.

Synonyms: delimit

See Also: be