/riv"yeuh leuhs/ , n. , pl. rivulus .
any of several killifishes of the genus Rivulus, native to small streams of tropical America, often kept in aquariums.
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/riv"yeuh leuhs/ , n. , pl. rivulus .
any of several killifishes of the genus Rivulus, native to small streams of tropical America, often kept in aquariums.
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Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012