from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The way in which an individual leaf is folded in the bud.
from the GNU version of the Collaborative International Dictionary of English
- n. The way in which a leaf is sometimes folded in the bud.
from The Century Dictionary and Cyclopedia
- n. In botany, the folding or configuration of a single part in a leaf- or flowerbud: opposed to vernation and estivation, the disposition of the parts conjointly.
From New Latin ptyxis, from Ancient Greek πτύξις (ptuksis, "a folding") (Wiktionary)