CLEAVAGE n.
Division into laminæ, like slate, with the lamination not necessarily parallel to the plane of deposition; -- usually produced by pressure. Basal cleavage, 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. -…
CLUB n.
clavatum, but other Lycopodia are often called by this name. The spores form a highly inflammable powder. -- Club root (Bot.), a disease of cabbages, by which the roots become distorted and the heads spoiled. -- Club topsail (Naut.), a kind of gaff topsail, used mostly by yachts having a fore-and-aft rig. It has a s…