Search Result for "vernation": 
Wordnet 3.0

NOUN (1)

1. (botany) the arrangement of young leaves in a leaf bud before it opens; 



The Collaborative International Dictionary of English v.0.48:

Vernation \Ver*na"tion\, n. [F. vernation: cf. L. vernatio the
   sloughing of the skin of snakes.] (Bot.)
   The arrangement of the leaves within the leaf bud, as regards
   their folding, coiling, rolling, etc.; prefoliation.
   [1913 Webster]


WordNet (r) 3.0 (2006):

vernation
    n 1: (botany) the arrangement of young leaves in a leaf bud
         before it opens