adnation
(ædˈneɪʃən)
[n. of action f. prec.; see -ion1.]
Attachment of surfaces; growth to. esp. in Bot. Adhesion of different whorls of the inflorescence to each other.
| 1842 Gray Struct. Bot. vi. §3 (1880) 179 Union of contiguous parts of different circles [of the inflorescence] = Adnation. |