English

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Etymology

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From New Latin ptyxis, from Ancient Greek πτύξις (ptúxis, a folding).

Pronunciation

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Noun

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ptyxis (countable and uncountable, plural ptyxes)

  1. (botany) The way in which an individual leaf is folded in the bud.

Usage notes

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The arrangement of several leaves is called vernation or prefoliation.