noun, plural confervae [kon-fur-vee] , confervas.
any simple filamentous green algae, many of which were formerly classified in the genus Conferva.

1630–40; < Latin: a certain water plant supposed to heal wounds, akin to confervēre to grow together, heal (see con-, fervent)

conferval, confervous [kuhn-fur-vuhs] , adjective
confervoid [kon-fur-void] , adjective, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
conferva (kɒnˈfɜːvə)
n , pl -vae, -vas
any of various threadlike green algae, esp any of the genus Tribonema, typically occurring in fresh water
[C18: from Latin: a water plant, from confervēre to grow together, heal, literally: to seethe, from fervēre to boil; named with reference to its reputed healing properties]
n, —adj

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