Trimorphism
Trimorphism Tri*mor"phism, n. [See {Trimorphic}.] 1. (Crystallog.) The property of crystallizing in three forms fundamentally distinct, as is the case with titanium dioxide, which crystallizes in the forms of rutile, octahedrite, and brookite. See {Pleomorphism}. [1913 Webster]

2. (Biol.) The co["e]xistence among individuals of the same species of three distinct forms, not connected, as a rule, by intermediate gradations; the condition among individuals of the same species of having three different shapes or proportions of corresponding parts; -- contrasted with {polymorphism}, and dimorphism. [1913 Webster]

{Heterogonous trimporphism} (Bot.), that condition in which flowers of plants of the same species have three different lengths of stamens, short, medium, and long, the blossoms of one individual plant having short and medium stamens and a long style, those of another having short and long stamens and a style of medium length, and those of a third having medium and long stamens and a short style, the style of each blossom thus being of a length not represented by its stamens. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • trimorphism — [trī môr′fiz΄əm] n. [< Gr trimorphos, of three forms < tri , three + morphē, form + ISM] 1. Crystallography the property of crystallizing in three distinct forms 2. Bot. the existence of three distinct forms of flowers, leaves, or other… …   English World dictionary

  • Trimorphism — In biology, trimorphism is the existence in certain plants and animals of three distinct forms, especially in connection with the reproductive organs. In trimorphic plants there are three forms, differing in the lengths of their pistils and… …   Wikipedia

  • trimorphism — n. Bot., Zool., & Crystallog. existence in three distinct forms. Derivatives: trimorphic adj. trimorphous adj. * * * (ˈ)trī|mȯrˌfizəm noun ( s) Etymology: International Scientific Vocabulary trimorph (from Greek trimorphos having three forms) +… …   Useful english dictionary

  • trimorphism — n …   Dictionary of invertebrate zoology

  • trimorphism — trimorphic, trimorphous, adj. /truy mawr fiz euhm/, n. 1. Zool. the occurrence of three forms distinct in structure, coloration, etc., among animals of the same species. 2. Bot. the occurrence of three different forms of flowers, leaves, etc., on …   Universalium

  • trimorphism — Existence under three forms, as in holometabolous insects that pass through larval, pupal, and imago stages. [tri + G. morphe, form] …   Medical dictionary

  • trimorphism — tri·mor·phism …   English syllables

  • trimorphism — /traɪˈmɔfɪzəm/ (say truy mawfizuhm) noun 1. Zoology the occurrence of three forms distinct in structure, colouration, etc., among animals of the same species. 2. Crystallography the property of some substances of crystallising in three… …   Australian English dictionary

  • Heterogonous trimporphism — Trimorphism Tri*mor phism, n. [See {Trimorphic}.] 1. (Crystallog.) The property of crystallizing in three forms fundamentally distinct, as is the case with titanium dioxide, which crystallizes in the forms of rutile, octahedrite, and brookite.… …   The Collaborative International Dictionary of English

  • trimorphic — (ˈ)trī|mȯrfik adjective Etymology: trimorphism + ic : exhibiting trimorphism …   Useful english dictionary

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