"Subtending" is a word in ENGLISH

The scales or bracts on the receptacle, which subtend each flower in the heads of many Compositae, as the sunflower.

That part of a plant destined to produce seed, and hence including one or both of the sexual organs; an …

An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend …

The quarter of a circle, or of the circumference of a circle, an arc of 90¡, or one subtending a …

A kind of telemeter for measuring the distance of an object of known dimensions, by observing the angle it subtends; …

To extend under, or be opposed to; as, the line of a triangle which subtends the right angle; the chord …

of Subtend

A line subtending, or stretching across; a chord; as, the subtense of an arc.