tetartohedral

tetartohedrally, adv.tetartohedrism, n.
/ti tahr'toh hee"dreuhl/, adj.
(of a crystal) having one fourth the planes or faces required by the maximum symmetry of the system to which it belongs.
[1855-60; < Gk tétarto(s) one fourth + -HEDRAL]

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Universalium. 2010.

Look at other dictionaries:

  • Tetartohedral — Te*tar to*he dral, a. [Gr. ? fourth + ? base.] (Crystallog.) Having one fourth the number of planes which are requisite to complete symmetry. {Te*tar to*he dral*ly}, adv. [1913 Webster] …   The Collaborative International Dictionary of English

  • tetartohedral — [tə tärt΄ə hē′drəl] adj. [ TETARTO + HEDRAL] having one fourth of the planes needed for crystallographic symmetry of the system …   English World dictionary

  • tetartohedral — adjective Etymology: Greek tetartos fourth; akin to Greek tettares four more at four Date: circa 1858 of a crystal having one fourth the number of planes required by complete symmetry compare hemihedral, holohedral …   New Collegiate Dictionary

  • tetartohedral — te·tar·to·he·dral …   English syllables

  • tetartohedral — /təˌtatoʊˈhidrəl/ (say tuh.tahtoh heedruhl) adjective (of a crystal) having one fourth the planes or faces required by the maximum symmetry of the system to which it belongs. {tetarto (from Greek, combining form of tetartos fourth) + hedr(on) +… …   Australian English dictionary

  • tetartohedral — …   Useful english dictionary

  • Tetartohedrally — Tetartohedral Te*tar to*he dral, a. [Gr. ? fourth + ? base.] (Crystallog.) Having one fourth the number of planes which are requisite to complete symmetry. {Te*tar to*he dral*ly}, adv. [1913 Webster] …   The Collaborative International Dictionary of English

  • Tetartohedrism — Te*tar to*he drism, n. (Crystallog.) The property of being tetartohedral. [1913 Webster] …   The Collaborative International Dictionary of English

  • Trapezohedron — Trap e*zo*he dron, n. [NL., from trapezium + Gr. ? seat, base, fr. ? to sit.] (Crystalloq.) (a) A solid bounded by twenty four equal and similar trapeziums; a tetragonal trisoctahedron. See the Note under {Trisoctahedron}. (b) A tetartohedral… …   The Collaborative International Dictionary of English

  • hemihedral — adjective Etymology: hemi + hedron Date: 1837 of a crystal having half the faces required by complete symmetry compare holohedral, tetartohedral …   New Collegiate Dictionary

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