| ALLOTROPY | • allotropy n. (Chemistry) A property, exhibited by some elements, of existing in multiple forms with different atomic structures. • ALLOTROPY n. the property whereby certain elements may exist in more than one crystal structure. |
| AZEOTROPY | • azeotropy n. (Physics, chemistry) The formation of an azeotrope; the condition of being azeotropic. • AZEOTROPY n. the state of being an azeotrope. |
| HEMITROPY | • hemitropy n. (Crystallography) Twin composition in crystals. • HEMITROPY n. the state of being a twin. |
| IONOTROPY | • ionotropy n. (Chemistry) A form of tautomerism involving the movement or redistribution of charges. • ionotropy n. (Physiology) The regulation of neurotransmitters or cell receptors by ion channels. • IONOTROPY n. the reversible interconversion of a pair of organic isomers. |
| ISOPROPYL | • isopropyl n. (Chemistry) the univalent organic radical (CH3)2CH-. • ISOPROPYL n. a radical derived from propane. |
| LIPOTROPY | • lipotropy n. The condition of being lipotropic. • LIPOTROPY n. the breaking down of fat in the body. |
| MICROPYLE | • micropyle n. (Botany) In seed-bearing plants, a small opening in the integuments of the ovule through which sperm… • micropyle n. (Zoology) The hilum of an ovum at the point of attachment to the ovary; any opening in the coverings… • MICROPYLE n. a micropore in ovum for spermatozoon; a minute pollen opening in a plant ovule. |
| PROPYLAEA | • propylaea n. Plural of propylaeum. • propylaea n. Plural of propylaeon. • PROPYLAEUM n. any court or vestibule before a building or leading into any inclosure. |
| PROPYLENE | • propylene n. (Organic chemistry) The organic chemical compound propene. An alkene which is a colorless gaseous (at… • PROPYLENE n. a colorless gaseous hydrocarbon of the ethylene series, having a garlic odor, also PROPENE. |
| PROPYLITE | • propylite n. (Mineralogy) A form of andesite modified by hydrothermal processes. • PROPYLITE n. an andesite altered by solfataric action. |
| PROPYLONS | • propylons n. Plural of propylon. • PROPYLON n. an entrance to a temple. |
| UROPYGIAL | • uropygial adj. (Ornithology) Of or pertaining to the uropygium; on the rump. • UROPYGIAL adj. of or pertaining to the uropygium, or prominence at the base of the tail feathers, in birds. |
| UROPYGIUM | • uropygium n. The posterior part of a bird’s body from which the tailfeathers grow. • UROPYGIUM n. the rump of a bird which supports the tail feathers. |