Xtaln.
/ˈkrɪstəl/ Abbreviation of crystal n. and adj.
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the world > matter > chemistry > crystallography (general) > crystal (general) > [noun]
crystal1605
crystal structure1842
Xtal1957
1957 Pract. Wireless 33 454/1 Remove Xtal unit by cutting off all leads at the source.
1971 Gramophone July 257/2 The crystal pickup button is labelled ‘xtal’ which is engineer's shorthand.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2022).
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n.1957