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Webster 1913 Edition

Noun.

[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.

Noun.

[L. verno.] In botany, the disposition of the nascent leaves within the bud. it is called also foliation or leafing.

vernation ‎(plural vernations)

The appearance of new leaves.
(botany) The arrangement of multiple organs (such as leaves and flower parts) within a bud.
(botany) Arrangement of only leaves within the bud; prefoliation.