equilateral shell
(MOLLUSCA: Bivalvia)
With the shell parts equal or almost equal anterior and posterior to the beak.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • Equilateral shell — Equilateral E qui*lat er*al, a. [L. aequilateralis; aequus equal + latus, lateris, side: cf. F. [ e]quilat[ e]ral.] Having all the sides equal; as, an equilateral triangle; an equilateral polygon. [1913 Webster] {Equilateral hyperbola} (Geom.),… …   The Collaborative International Dictionary of English

  • Equilateral — E qui*lat er*al, a. [L. aequilateralis; aequus equal + latus, lateris, side: cf. F. [ e]quilat[ e]ral.] Having all the sides equal; as, an equilateral triangle; an equilateral polygon. [1913 Webster] {Equilateral hyperbola} (Geom.), one whose… …   The Collaborative International Dictionary of English

  • Equilateral hyperbola — Equilateral E qui*lat er*al, a. [L. aequilateralis; aequus equal + latus, lateris, side: cf. F. [ e]quilat[ e]ral.] Having all the sides equal; as, an equilateral triangle; an equilateral polygon. [1913 Webster] {Equilateral hyperbola} (Geom.),… …   The Collaborative International Dictionary of English

  • Mutually equilateral — Equilateral E qui*lat er*al, a. [L. aequilateralis; aequus equal + latus, lateris, side: cf. F. [ e]quilat[ e]ral.] Having all the sides equal; as, an equilateral triangle; an equilateral polygon. [1913 Webster] {Equilateral hyperbola} (Geom.),… …   The Collaborative International Dictionary of English

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  • chemical bonding — ▪ chemistry Introduction       any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …   Universalium

  • Guitar pick — A guitar pick is a type of plectrum designed for use on a guitar. Over time people have made picks of various materials, including plastic, rubber, felt, tortoiseshell, wood, metal, and stone. They most often take the shape of an acute isosceles… …   Wikipedia

  • muscle — muscleless, adj. muscly, adj. /mus euhl/, n., v., muscled, muscling, adj. n. 1. a tissue composed of cells or fibers, the contraction of which produces movement in the body. 2. an organ, composed of muscle tissue, that contracts to produce a… …   Universalium

  • architecture — /ahr ki tek cheuhr/, n. 1. the profession of designing buildings, open areas, communities, and other artificial constructions and environments, usually with some regard to aesthetic effect. Architecture often includes design or selection of… …   Universalium

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