lamina

views updated May 18 2018

lam·i·na / ˈlamənə/ • n. (pl. -nae / -ˌnē; -ˌnī/ ) technical a thin layer, plate, or scale of sedimentary rock, organic tissue, or other material.DERIVATIVES: lam·i·nose / -ˌnōs; -ˌnōz/ adj.

lamina

views updated May 14 2018

lamina
1. The thin and usually flattened blade of a leaf, in which photosynthesis and transpiration occurs. The bulk of the lamina is made up of mesophyll cells interspersed by a network of veins (vascular bundles). The mesophyll is enclosed by a protective epidermis that produces a waxy cuticle.

2. The leaflike part of the thallus of certain algae, notably kelps. See also stipe.

lamina

views updated Jun 11 2018

lamina thin plate or scale. XVII. — L. lāmina, lammina.
Hence laminate, laminated XVII; see -ATE2, -ED1.

lamina

views updated May 08 2018

lamina The finest sedimentary layer, less than 1 cm in thickness. Strata more than 1 cm thick are termed ‘beds’ (see BEDDING).

lamina

views updated Jun 11 2018

lamina (lam-in-ă) n. (pl. laminae) a thin membrane or layer of tissue, such as the bony plate forming part of a vertebral arch.

lamina

views updated Jun 11 2018

lamina A flat, sheet-like structure (e.g. the blade of a leaf).

lamina

views updated May 29 2018

lamina A flat, sheet-like structure.

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