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De - Pt| English Dictionary: C2H6 | by the DICT Development Group |
| 3 results for C2H6 | |
| From WordNet (r) 3.0 (2006) [wn]: | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Ethane \Eth"ane\, n. [From {Ether}.] (Chem.) A gaseous hydrocarbon, {C2H6}, forming a constituent of ordinary illuminating gas. It is the second member of the paraffin series, and its most important derivatives are common alcohol, aldehyde, ether, and acetic acid. Called also {dimethyl}. | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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Homology \Ho*mol"o*gy\, n. [Gr. [?] agreement. See {Homologous}.] 1. The quality of being homologous; correspondence; relation; as, the homologyof similar polygons. 2. (Biol.) Correspondence or relation in type of structure in contradistinction to similarity of function; as, the relation in structure between the leg and arm of a man; or that between the arm of a man, the fore leg of a horse, the wing of a bird, and the fin of a fish, all these organs being modifications of one type of structure. Note: Homology indicates genetic relationship, and according to Haeckel special homology should be defined in terms of identity of embryonic origin. See {Homotypy}, and {Homogeny}. 3. (Chem.) The correspondence or resemblance of substances belonging to the same type or series; a similarity of composition varying by a small, regular difference, and usually attended by a regular variation in physical properties; as, there is an homology between methane, {CH4}, ethane, {C2H6}, propane, {C3H8}, etc., all members of the paraffin series. In an extended sense, the term is applied to the relation between chemical elements of the same group; as, chlorine, bromine, and iodine are said to be in homology with each other. Cf. {Heterology}. {General homology} (Biol.), the higher relation which a series of parts, or a single part, bears to the fundamental or general type on which the group is constituted. --Owen. {Serial homology} (Biol.), representative or repetitive relation in the segments of the same organism, -- as in the lobster, where the parts follow each other in a straight line or series. --Owen. See {Homotypy}. {Special homology} (Biol.), the correspondence of a part or organ with those of a different animal, as determined by relative position and connection. --Owen. | |
