- A thin plate or scale; a layer or coat lying over another; -- said of thin plates or platelike substances, as of bone or minerals.
- [Bot] The blade of a leaf; the broad, expanded portion of a petal or sepal of a flower.
- [Zoöl] A thin plate or scale; specif., one of the thin, flat processes composing the vane of a feather.
Etymology: L. cf. Lamella