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unit cell

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Definition of unit cell in English:

noun

Crystallography
The smallest group of atoms which has the overall symmetry of a crystal, and from which the entire lattice can be built up by repetition in three dimensions.
Example sentences
  • Repeated translation along the edges of the unit cell can be used to derive the entire crystal lattice; in other words, the crystal lattice is the unit cell repeated many times in a periodic fashion.
  • Crystallographers describe the repeating unit of a crystal lattice, the unit cell, by the length of its edges and angles between them.
  • The most common method to determine deviations from stoichiometry is the use of x-ray diffraction to measure the parameters of the lattice unit cell.

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