'Chorisis' definitions:

Definition of 'Chorisis'

From: GCIDE

Chorisis \Cho"ri*sis\, n. [NL., fr. Gr. ? separation.] (Bot.) The separation of a leaf or floral organ into two more parts. [1913 Webster]
Note: In collateral chorisis the parts are side by side. -- In parallel or median chorisis they are one in front of another. [1913 Webster]