%lamina%

n. (Biol.) Formation and separation of laminæ or layers; one of the methods by which the various blastodermic layers of the ovum are differentiated. [ 1913 Webster ]

☞ This process consists of a concentric splitting of the cells of the blastosphere into an outer layer (epiblast) and an inner layer (hypoblast). By the perforation of the resultant two-walled vesicle, a gastrula results similar to that formed by the process of invagination. [ 1913 Webster ]

{ , a. (Anat.) Between lammellæ or laminæ; as, interlamellar spaces. [ 1913 Webster ]

a. Placed between, or containing, laminæ or plates. [ 1913 Webster ]

n. The state of being interlaminated. [ 1913 Webster ]

n.; pl. L. Laminæ . Laminas [ L. cf. Lamella. ] 1. A thin plate or scale; a layer or coat lying over another; -- said of thin plates or platelike substances, as of bone or minerals. [ 1913 Webster ]

2. (Bot.) The blade of a leaf; the broad, expanded portion of a petal or sepal of a flower. Gray. [ 1913 Webster ]

3. (Zool.) A thin plate or scale; specif., one of the thin, flat processes composing the vane of a feather. [ 1913 Webster ]

n. The quality or state of being laminable. [ 1913 Webster ]

a. Capable of being split into laminæ or thin plates, as mica; capable of being extended under pressure into a thin plate or strip. [ 1913 Webster ]

When a body can be readily extended in all directions under the hammer, it is said to be malleable; and when into fillets under the rolling press, it is said to be laminable. Ure. [ 1913 Webster ]

{ } a. [ Cf. F. laminaire. See Lamina ] In, or consisting of, thin plates or layers; having the form of a thin plate or lamina. [ 1913 Webster ]

‖n. [ NL. See Lamina. ] (Bot.) A genus of great seaweeds with long and broad fronds; kelp, or devil's apron. The fronds commonly grow in clusters, and are sometimes from thirty to fifty feet in length. See Illust. of Kelp. [ 1913 Webster ]

a. Pertaining to seaweeds of the genus Laminaria, or to that zone of the sea (from two to ten fathoms in depth) where the seaweeds of this genus grow. [ 1913 Webster ]

n. [ See Lamina. ] (Paleon.) A broad-leafed fossil alga. [ 1913 Webster ]

a. Laminar. [ 1913 Webster ]

v. t. [ imp. & p. p. Laminated p. pr. & vb. n. Laminating ] [ See Lamina. ] 1. To cause to separate into thin plates or layers; to divide into thin plates. [ 1913 Webster ]

2. To form, as metal, into a thin plate, as by rolling. [ 1913 Webster ]

3. To form by uniting two or more layers (in sheet form) of a material, so that the layers are bonded tightly; as, plywood has at least three laminated layers. [ PJC ]

4. To unite (layers in sheet form) by bonding, so as to create a single object with multiple layers; -- used with the material in sheet form as the object; as, to laminate plywood. [ PJC ]

a. [ See Lamina. ] Consisting of, or covered with, laminae, or thin plates, scales, or layers, one over another; laminated. [ 1913 Webster ]

v. i. To separate into laminae. [ 1913 Webster ]

a. 1. Consisting of, or covered with, laminae, or thin plates, sheets, scales, or layers, one over another; laminate. [ 1913 Webster ]

2. Hence: Constructed of thin sheets of material, bonded together to form a composite structure having multiple layers. [ PJC ]

Laminated arch (Arch.), a timber arch made of layers of bent planks secured by treenails. [ 1913 Webster ]

a. Forming, or separating into, scales or thin layers. [ 1913 Webster ]

n. The process of laminating, or the state of being laminated. [ 1913 Webster ]