Ceratophyllum n 1: constituting the family Ceratophyllaceae: hornworts [syn: {Ceratophyllum}, {genus Ceratophyllum}]
Ceratophyllum \Ceratophyllum\ n. the sole genus constituting the family {Ceratophyllaceae}; the hornworts. Syn: genus {Ceratophyllum}. [WordNet 1.5]