homologous : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: homologous	by the DICT Development Group
2 results for homologous
From WordNet (r) 3.0 (2006) [wn]:
homologous adj having the same evolutionary origin but not necessarily the same function; "the wing of a bat and the arm of a man are homologous" Antonym(s): analogous, heterologic, heterological, heterologous corresponding or similar in position or structure or function or characteristics; especially derived from an organism of the same species; "a homologous tissue graft" Antonym(s): autologous, heterologous
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Homologous \Homol"ogous\, a. [Gr. [?] assenting, agreeing; [?] the same + [?] speech, discourse, proportion, [?] to say, speak.] Having the same relative position, proportion, value, or structure. Especially: (a) (Geom.) Corresponding in relative position and proportion. In similar polygons, the corresponding sides, angles, diagonals, etc., are homologous. --Davies & Peck (Math. Dict.). (b) (Alg.) Having the same relative proportion or value, as the two antecedents or the two consequents of a proportion. (c) (Chem.) Characterized by homology; belonging to the same type or series; corresponding in composition and properties. See {Homology}, 3. (d) (Biol.) Being of the same typical structure; having like relations to a fundamental type to structure; as, those bones in the hand of man and the fore foot of a horse are homologous that correspond in their structural relations, that is, in their relations to the type structure of the fore limb in vertebrates. {Homologous stimulus}. (Physiol.) See under {Stimulus}.