lamina noun. ['lamɪnǝ] Pl. -nae [-ni:]. M17.
[Latin la(m)mina. Cf. LAME noun², prec.]
1. A thin plate or layer of a metal or other material; Anatomy & Biology a thin layer of bone, membrane, or other tissue. M17.
b. Botany. The flat, expanded portion of a leaf, petal, or thallus. Opp. unguis. M18.

2. Geology. The thinnest separable layer of a sedimentary rock deposit. M19.

3. Math. A plane sheet of negligible thickness. M19.

[TahlilGaran] English Dictionary ▲