pseudosymmetry

pseudosymmetry
\\“+\ noun
Etymology: International Scientific Vocabulary pseud- + symmetry
: the apparent symmetry in crystals that come to resemble (as in the apparently hexagonal prisms of aragonite) forms of another system

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/sooh'doh sim"i tree/, n. Crystall.
an apparent symmetry different from that appropriate to a crystal of a given mineral.
[1885-90; PSEUDO- + SYMMETRY]

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pseudosymmˈetry noun (crystallography)
A deceptively close approach by a crystal to a higher degree of symmetry, eg when the axes of a tetragonal crystal are so close to being equal that on casual inspection the crystal appears to be cubic (pseudocubic symmetry) or when a crystal that is not quite hexagonal appears to be so (pseudohexagonal symmetry)
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Main Entry: ↑pseud-

Useful english dictionary. 2012.

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