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Promorphology :: Promorphology (n.) Crystallography of organic forms; -- a division of morphology created by Haeckel. It is essentially stereometric, and relates to a mathematical conception of organic forms. See Tectology..

Isomorph :: Isomorph (n.) A substance which is similar to another in crystalline form and composition.

Paraxanthin :: Paraxanthin (n.) A crystalline substance closely related to xanthin, present in small quantity in urine..

Iodoform :: Iodoform (n.) A yellow, crystalline, volatile substance, CI3H, having an offensive odor and sweetish taste, and analogous to chloroform. It is used in medicine as a healing and antiseptic dressing for wounds and sores..

Wrightine :: Wrightine (n.) A rare alkaloid found in the bark of an East Indian apocynaceous tree (Wrightia antidysenterica), and extracted as a bitter white crystalline substance. It was formerly used as a remedy for diarrh/a. Called also conessine, and neriine..

Haematexylin :: Haematexylin (n.) The coloring principle of logwood. It is obtained as a yellow crystalline substance, C16H14O6, with a sweetish taste. Formerly called also hematin..

Glauber''s Salts :: Glauber's salts () Sulphate of soda, a well-known cathartic. It is a white crystalline substance, with a cooling, slightly bitter taste, and is commonly called salts..

Amorphism :: Amorphism (n.) A state of being amorphous; esp. a state of being without crystallization even in the minutest particles, as in glass, opal, etc..

Pseudomorphism :: Pseudomorphism (n.) The state of having, or the property of taking, a crystalline form unlike that which belongs to the species..

Santal :: Santal (n.) A colorless crystalline substance, isomeric with piperonal, but having weak acid properties. It is extracted from sandalwood..

Curarine :: Curarine (n.) A deadly alkaloid extracted from the curare poison and from the Strychnos toxifera. It is obtained in crystalline colorless salts.

Coerulignone :: Coerulignone (n.) A bluish violet, crystalline substance obtained in the purification of crude wood vinegar. It is regarded as a complex quinone derivative of diphenyl; -- called also cedriret..

Chondrodite :: Chondrodite (n.) A fluosilicate of magnesia and iron, yellow to red in color, often occurring in granular form in a crystalline limestone..

Goniometer :: Goniometer (n.) An instrument for measuring angles, especially the angles of crystals, or the inclination of planes..

Orcin :: Orcin (n.) A colorless crystalline substance, C6H3.CH3.(OH)2, which is obtained from certain lichens (Roccella, Lecanora, etc.), also from extract of aloes, and artificially from certain derivatives of toluene. It changes readily into orcein..

Diabase :: Diabase (n.) A basic, dark-colored, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited to rocks pretertiary in age. It includes part of what was early called greenstone..

Ficttelite :: Ficttelite (n.) A white crystallized mineral resin from the Fichtelgebirge, Bavaria..

Pyromucic :: Pyromucic (a.) Pertaining to, derived from, or designating, an acid obtained as a white crystalline substance by the distillation of mucic acid, or by the oxidation of furfurol..

Needle :: Needle (n.) Any slender, pointed object, like a needle, as a pointed crystal, a sharp pinnacle of rock, an obelisk, etc..

Brookite :: Brookite (n.) A mineral consisting of titanic oxide, and hence identical with rutile and octahedrite in composition, but crystallizing in the orthorhombic system..

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