lamina

[ lam-uh-nuh ]

noun

, plural lam·i·nae [lam, -, uh, -nee], 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.

lamina

/ ˈlæmɪnə; ˈlæmɪˌnəʊs; -ˌnəʊz /

noun

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

lamina

/ lăm′ə-nə /

, Plural laminae lăm′ə-nē′

1. The expanded area of a leaf or petal; a blade.
2. See more at leaf
3. A thin layer of bone, membrane, or other tissue.
4. 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.

Derived Forms

• ˈlaminar, adjective

Word History and Origins

Origin of lamina¹

From Latin, dating back to 1650–60; lame ²

Word History and Origins

Origin of lamina¹

C17: New Latin, from Latin: thin plate

Example Sentences

In some the horn is at first a broad lamina or ridge, which terminates in two branches, as in Onthophagus Vacca.

From Project Gutenberg

The old lamina is pushed off, but is held on the summit of the new growth until the latter has matured.

From Project Gutenberg

This genus is readily distinguishable by the fact that it has leaflets below the lamina.

From Project Gutenberg

This species differs from L. longicruris in having a short, solid stem and narrow, ribbon-like lamina.

From Project Gutenberg

The petiole and761 midrib of the leaf being cut off, dry the lamina.

From Project Gutenberg