2. (Crystallog.) Having the planes arranged spirally, so that
they incline all to the right (or left) of a vertical
line; -- said of certain hemihedral forms.
[1913 Webster]
3. (Opt.) Turning the plane of polarization circularly or spirally to the right or left. [1913 Webster]
The Collaborative International Dictionary of English. 2000.
gyroidal — gyroidally, adv. /juy royd l/, adj. having a spiral arrangement. [1860 65; GYR + OID + AL1] * * * … Universalium
gyroidal — gy·roi·dal … English syllables
gyroidal — … Useful english dictionary
Crystal system — Diamond crystal structure consists of face centered cubic lattice. In crystallography, the terms crystal system, crystal family, and lattice system each refer to one of several classes of space groups, lattices, point groups, or crystals.… … Wikipedia
Cubic crystal system — A rock containing three crystals of pyrite (FeS2). The crystal structure of pyrite is simple cubic, and this is reflected in the cubic symmetry of its natural crystal facets … Wikipedia
Petzite — Catégorie II : sulfures et sulfosels[1] Petzite Nagyag Roumanie (cm) … Wikipédia en Français
Sistema cristalino cúbico — El sistema cristalino cúbico, también llamado isométrico, es uno de los siete sistemas cristalinos existentes en cristalografía. Es común en muchos minerales, como por ejemplo en la pirita o la galena. Representación con bolas de un sistema… … Wikipedia Español
gyroidally — adverb see gyroidal … Useful english dictionary
