单词	blackfin cisco
释义	blackfin cisco noun : a deep-bodied whitefish (Coregonus nigripinnis synonym Leucichthys nigripinnis) with bluish-black fins that formerly inhabited the Great Lakes but is now considered highly endangered or extinct The blackfin cisco disappeared from its once-expansive range in the Great Lakes by 1969, but at least it has managed to escape extinction: a small population, classified by the government of Canada as threatened, survives in unknown numbers in Lake Nipigon, Ontario. Scott Weidensaul, The Ghost with Trembling Wings, 2002 Word History First Known Use 1909, in the meaning defined above
随便看	organizer organizers organizes organizing organless organo pieno organo- organochlorine organochlorines organochlorosilane organogeneses organogenesis organogenetic organogenic organogenist organographic organographies organoleptic organoleptically organologic organological organologies organologists organomercurial organomercurials

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