Definition of cleavage

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Cleavage (n.) Division into laminae, like slate, with the lamination not necessarily parallel to the plane of deposition; -- usually produced by pressure..

Lern More About Cleavage

Monotomous :: Monotomous (a.) Having a distinct cleavage in a single direction only.
Morulation :: Morulation (n.) The process of cleavage, or segmentation, of the ovum, by which a morula is formed..
Orthotomous :: Orthotomous (a.) Having two cleavages at right angles with one another.
Fissile :: Fissile (a.) Capable of being split, cleft, or divided in the direction of the grain, like wood, or along natural planes of cleavage, like crystals..
Secondary :: Secondary (a.) Subsequent in origin; -- said of minerals produced by alteertion or deposition subsequent to the formation of the original rocks mass; also of characters of minerals (as secondary cleavage, etc.) developed by pressure or other causes..
Cleavage :: Cleavage (n.) Division into laminae, like slate, with the lamination not necessarily parallel to the plane of deposition; -- usually produced by pressure..
Discoblastic :: Discoblastic (a.) Applied to a form of egg cleavage seen in osseous fishes, which occurs only in a small disk that separates from the rest of the egg..
Octahedral :: Octahedral (a.) Having eight faces or sides; of, pertaining to, or formed in, octahedrons; as, octahedral cleavage..
Galena :: Galena (n.) Lead sulphide; the principal ore of lead. It is of a bluish gray color and metallic luster, and is cubic in crystallization and cleavage..
Heulandite :: Heulandite (n.) A mineral of the Zeolite family, often occurring in amygdaloid, in foliated masses, and also in monoclinic crystals with pearly luster on the cleavage face. It is a hydrous silicate of alumina and lime..
Stile :: Stilbite (n.) A common mineral of the zeolite family, a hydrous silicate of alumina and lime, usually occurring in sheaflike aggregations of crystals, also in radiated masses. It is of a white or yellowish color, with pearly luster on the cleavage surface. Called also desmine..
Fluorite :: Fluorite (n.) Calcium fluoride, a mineral of many different colors, white, yellow, purple, green, red, etc., often very beautiful, crystallizing commonly in cubes with perfect octahedral cleavage; also massive. It is used as a flux. Some varieties are used for ornamental vessels. Also called fluor spar, or simply fluor..
Fission :: Fission (n.) A method of asexual reproduction among the lowest (unicellular) organisms by means of a process of self-division, consisting of gradual division or cleavage of the into two parts, each of which then becomes a separate and independent organisms; as when a cell in an animal or plant, or its germ, undergoes a spontaneous division, and the parts again subdivide. See Segmentation, and Cell division, under Division..
Pyramidal :: Pyramidal (a.) Of or pertaining to a pyramid; in the form of a a pyramid; pyramidical; as, pyramidal cleavage..
Schizo- :: Schizo- () A combining form denoting division or cleavage; as, schizogenesis, reproduction by fission or cell division..
Diatomous :: Diatomous (a.) Having a single, distinct, diagonal cleavage; -- said of crystals..
Hypersthene :: Hypersthene (n.) An orthorhombic mineral of the pyroxene group, of a grayish or greenish black color, often with a peculiar bronzelike luster (schiller) on the cleavage surface..
Cubical :: Cubical (a.) Isometric or monometric; as, cubic cleavage. See Crystallization..
Cleavage :: Cleavage (n.) The act of cleaving or splitting.
Parting :: Parting (n.) Lamellar separation in a crystallized mineral, due to some other cause than cleavage, as to the presence of twinning lamellae..
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