Apophysis \A*poph"y*sis\, n.; pl. -ses. [NL., fr. Gr. ? offshoot, process of a bone, fr. ? to grow from; ? from + ?, ?, to grow.]

1. (Anat.) A marked prominence or process on any part of a bone.

2. (Bot.) An enlargement at the top of a pedicel or stem, as seen in certain mosses. --Gray.

Source: Webster's Revised Unabridged Dictionary (1913)