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.), one whose axes are equal.

{Equilateral shell} (Zo["o]l.), one in which a transverse line drawn through the apex of the umbo bisects the valve, or divides it into two equal and symmetrical parts.

{Mutually equilateral}, applied to two figures, when every side of the one has its equal among the sides of the other. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • equilateral shell — (MOLLUSCA: Bivalvia) With the shell parts equal or almost equal anterior and posterior to the beak …   Dictionary of invertebrate zoology

  • 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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