reflex

tahaton, refleksimäinen

refleksi An automatic response to a simple stimulus which does not require mental processing.
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puhekieltä the descendant of an earlier language element, such as a word or phoneme, in a daughter language
puhekieltä reflection Reflection; the light reflected from an illuminated surface to one in shade.
Shakespeare

Yon gray is not the morning's eye, / 'Tis but the pale reflex of Cynthia's brow.

On the depths of death there swims / The reflex of a human face.

the reflex act of the soul, or the turning of the intellectual eye inward upon its own actions

A polygon is said to be convex when no one of its angles is reflex.

An angle less than a right angle is said to be acute; one greater than a right angle but less than a straight angle is said to be obtuse; one greater than a straight angle but less than a perigon is said to be reflex or convex.

If the reflex region is the interior of the angle, the dihedral angle is reflex.

A reflex edge of a polyhedron is an edge where the inner dihedral angle subtended by two incident faces is greater than 180°.

We say that an angle is convex if it is not reflex.

P denotes a polygon and r the number of reflex vertices.