An automatic response to a simple stimulus which does not require mental processing.

(linguistics) The descendant of an earlier language element, such as a word or phoneme, in a daughter language.

(linguistics, rare) The ancestor word corresponding to a descendant.

The descendant of anything from an earlier time, such as a cultural myth.

(chiefly photography) Reflection or an image produced by reflection. The light reflected from an illuminated surface to one in shade.

(transitive) To bend back or turn back over itself.

To respond to a stimulus.

Bent, turned back or reflected.

Produced automatically by a stimulus.

(geometry, of an angle) Having greater than 180 degrees but less than 360 degrees.

(painting) Illuminated by light reflected from another part of the same picture.