Abscissin

//ˈæb.sə.sən// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A plant hormone controlling the dropping off or abscission of certain plant parts, notably the leaves of trees in autumn or cotton bolls. dated, uncountable, usually

Etymology

From abscission + -in.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.