The Collaborative International Dictionary
Interior \In*te"ri*or\, a. [L., compar. fr. inter between: cf. F. int['e]rieur. See Inter-, and cf. Intimate.]
Being within any limits, inclosure, or substance; inside; internal; inner; -- opposed to exterior, or superficial; as, the interior apartments of a house; the interior surface of a hollow ball.
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Remote from the limits, frontier, or shore; inland; as, the interior parts of a region or country.
Interior angle (Geom.), an angle formed between two sides, within any rectilinear figure, as a polygon, or between two parallel lines by these lines and another intersecting them; -- called also internal angle.
Interior planets (Astron.), those planets within the orbit of the earth.
Interior screw, a screw cut on an interior surface, as in a nut; a female screw.
Syn: Internal; inside; inner; inland; inward.
Wiktionary
n. (context geometry English) The inner angle between two sides of a polygon.
WordNet
n. the angle inside two adjacent sides of a polygon [syn: internal angle]
Usage examples of "interior angle".
They were tied to leashes anchored to thick stakes driven into the earth, in front of a slice of a house about fifty yards away, a house sitting on a chunk of a lawn in the interior angle of the two mistwalls.
I turned to the scanners, lifted their hoods one by one, and located Jean standing in the open space before the awning, half in shadow above something lying in an interior angle of the walls.
The island, as it took shape under the boy's pencil, was shaped rather like a capital L, with the harbor formed by the interior angle facing north.