cambium

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a formative one-cell layer of tissue between xylem and phloem in most vascular plants that is responsible for secondary growth
  2. noun the inner layer of the periosteum

Etymology

Borrowed from Late Latin cambium (“a change”), from Gaulish. Doublet of change.

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