Definition of crystal class in English:

crystal class

Line breaks: crys|tal class

Entry from British & World English dictionary

noun

Each of thirty-two categories of crystals classified according to the possible combinations of symmetry elements possessed by the crystal lattice.

Definition of crystal class in:

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Word of the day guzzle
Pronunciation: ˈgʌz(ə)l
verb
eat or drink (something) greedily