Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of cleavage is as below...

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..

Foliation :: Foliation (n.) The property, possessed by some crystalline rocks, of dividing into plates or slabs, which is due to the cleavage structure of one of the constituents, as mica or hornblende. It may sometimes include slaty structure or cleavage, though the latter is usually independent of any mineral constituent, and transverse to the bedding, it having been produced by pressure..

Cleavage :: Cleavage (n.) The quality possessed by many crystallized substances of splitting readily in one or more definite directions, in which the cohesive attraction is a minimum, affording more or less smooth surfaces; the direction of the dividing plane; a fragment obtained by cleaving, as of a diamond. See Parting..

Orthotomous :: Orthotomous (a.) Having two cleavages at right angles with one another.

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

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..

Diatomous :: Diatomous (a.) Having a single, distinct, diagonal cleavage; -- said of crystals..

Cubical :: Cubical (a.) Isometric or monometric; as, cubic cleavage. See Crystallization..

Parting :: Parting (n.) Lamellar separation in a crystallized mineral, due to some other cause than cleavage, as to the presence of twinning lamellae..

Octahedral :: Octahedral (a.) Having eight faces or sides; of, pertaining to, or formed in, octahedrons; as, octahedral cleavage..

Apophyllite :: Apophyllite (n.) A mineral relating to the zeolites, usually occurring in square prisms or octahedrons with pearly luster on the cleavage surface. It is a hydrous silicate of calcium and potassium..

Cronstedtite :: Cronstedtite (n.) A mineral consisting principally of silicate of iron, and crystallizing in hexagonal prisms with perfect basal cleavage; -- so named from the Swedish mineralogist Cronstedt..

Bismuth :: Bismuth (n.) One of the elements; a metal of a reddish white color, crystallizing in rhombohedrons. It is somewhat harder than lead, and rather brittle; masses show broad cleavage surfaces when broken across. It melts at 507¡ Fahr., being easily fused in the flame of a candle. It is found in a native state, and as a constituent of some minerals. Specific gravity 9.8. Atomic weight 207.5. Symbol Bi..

Acrotomous :: Acrotomous (a.) Having a cleavage parallel with the base.

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..

Ectolecithal :: Ectolecithal (a.) Having the food yolk, at the commencement of segmentation, in a peripheral position, and the cleavage process confined to the center of the egg; as, ectolecithal ova..

Segment :: Segment (v. i.) To divide or separate into parts in growth; to undergo segmentation, or cleavage, as in the segmentation of the ovum..

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..

Segment :: Segment (n.) One of the cells or division formed by segmentation, as in egg cleavage or in fissiparous cell formation..

Rhodochrosite :: Rhodochrosite (n.) Manganese carbonate, a rose-red mineral sometimes occuring crystallized, but generally massive with rhombohedral cleavage like calcite; -- called also dialogite..

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