rotation axis — noun : a simple axis of symmetry in a crystal about which the whole crystal configuration is brought into coincidence with its original aspect by a rotation of one half, one third, one fourth, or one sixth of a turn about the axis * * * Crystall … Useful english dictionary
rotation axis — Crystall. an imaginary line through a crystal about which the crystal may be rotated a specified number of degrees and be brought back to its original position. Also called axis of symmetry, symmetry axis of rotation. Cf. symmetry element. [1900… … Universalium
Crystal structure — In mineralogy and crystallography, crystal structure is a unique arrangement of atoms or molecules in a crystalline liquid or solid. A crystal structure is composed of a pattern, a set of atoms arranged in a particular way, and a lattice… … Wikipedia
Crystal optics — is the branch of optics that describes the behaviour of light in anisotropic media, that is, media (such as crystals) in which light behaves differently depending on which direction the light is propagating. The index of refraction depends on… … Wikipedia
axe de rotation de cristal — kristalo sukimosi ašis statusas T sritis fizika atitikmenys: angl. crystal rotation axis vok. Kristalldrehachse, f rus. ось вращения кристалла, f pranc. axe de rotation de cristal, m … Fizikos terminų žodynas
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
Crystal structure of boron-rich metal borides — Two single crystals of YB66 (1 cm diameter) grown by floating zone technique using (100) oriented seeds. In the top crystal, the seed (left from the black line) has same diameter as the crystal. In the bottom crystal (sliced), the seed is much… … Wikipedia
Crystal oscillator — A miniature 4 MHz quartz crystal enclosed in a hermetically sealed HC 49/US package, used as the resonator in a crystal oscillator. A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal … Wikipedia
rotation-inversion axis — /roh tay sheuhn in verr zheuhn, sheuhn/, Crystall. an axis of a crystal such that rotating about the axis and then inverting the crystal brings the crystal back to its original position. Also called symmetry axis of rotary inversion. Cf. symmetry … Universalium
rotation-inversion axis — /roh tay sheuhn in verr zheuhn, sheuhn/, Crystall. an axis of a crystal such that rotating about the axis and then inverting the crystal brings the crystal back to its original position. Also called symmetry axis of rotary inversion. Cf. symmetry … Useful english dictionary