CLEAVAGE n.
age, cleavage parallel to the base of a crystal, or to the plane of the lateral axes. -- Cell cleavage (Biol.), multiplication of cells by fission. See Segmentation. -- Cubuc cleavage, cleavage parallel to the faces of a cube. -- Diagonal cleavage, cleavage parallel to ta diagonal plane. -- Egg clavage. (Biol.) See…
COLUMNAR a.
columns; like the shaft of a column. Columnar epithelium (Anat.), epithelium in which the cells are priismatic in form, and set upright on the surface they cover. -- Columnar structure (Geol.), a structure consisting of more or less regular columns, usually six-sided, but sometimes with eight or more sides. The column…