lamina

(lămˈə-nə)

1. A thin plate, sheet, or layer.
2. Botany
   a. The expanded area of a leaf or petal; a blade.
   b. The bladelike part of a kelp.
3. A thin layer of bone, membrane, or other tissue.
4. Zoology A thin scalelike or platelike structure, as one of the thin layers of sensitive vascular tissue in the hoof of a horse.
5. Geology A narrow bed of rock.

Related Forms:

• lamˈi·nar, lamˈi·nal adjective