laminae

< /ˈlæm əˌni/, lam·i·nas.

1. a thin plate, scale, or layer.
2. a layer or coat lying over another, as the plates of minerals or bones.
3. Botany. the blade or expanded portion of a leaf.
4. Geology. a layer of sediment or sedimentary rock only a small fraction of an inch (less than a centimeter) in thickness.

noun plural -nae (-ˌniː) or -nas

1. a thin plate or layer, esp of bone or mineral
2. botany the flat blade of a leaf, petal, or thallus

n. pl. lam•i•nas

1. A thin plate, sheet, or layer.
2. A thin layer of bone, membrane, or other tissue.

Plural laminae (lăm′ə-nē′) laminas

1. The expanded area of a leaf or petal; a blade. See more at leaf.
2. A thin layer of bone, membrane, or other tissue.
3. The thinnest recognizable layer of sediment, differing from other layers in color, composition, or particle size. Laminae are usually less than 1 cm (0.39 inches) thick.