Ceratophyllum

noun
Cer·​a·​to·​phyl·​lum | \-ˈfiləm\

Definition of Ceratophyllum 

: a cosmopolitan genus of rootless thin-stemmed aquatic herbs that occur in quiet freshwaters and that have flowers with a sepaloid perianth and a single carpel — see ceratophyllaceae , hornwort

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History and Etymology for Ceratophyllum

New Latin, from cerat- + -phyllum

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