noun

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

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

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

verb

1. To bend, turn back or reflect.

2. To respond to a stimulus.

adjective

1. Bent, turned back or reflected.

2. Produced automatically by a stimulus.

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

Synonyms: re-entrant