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noctiluca

[nok-tuh-loo-kuh] /ˌnɒk təˈlu kə/
noun, plural noctilucae
[nok-tuh-loo-see] /ˌnɒk təˈlu si/ (Show IPA)
1.
a dinoflagellate of the genus Noctiluca, capable of producing light and, in groups, of causing a luminous appearance of the sea.
Origin
1670-1680
1670-80; < New Latin; Latin noctilūca shiner by night, equivalent to nocti- nocti- + -lūca shiner, derivative of lūcēre to shine
Related forms
noctilucan, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for noctilucan

noctiluca

/ˌnɒktɪˈluːkə/
noun (pl) -cae (-siː)
1.
any bioluminescent marine dinoflagellate of the genus Noctiluca
Word Origin
C17: from Latin, from nox night + lūcēre to shine
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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