anopheles UK /əˈnɒfɪliːz/US /əˈnɑfəliz/ noun[before a noun]1 •A mosquito of the genus Anopheles, some insects of which transmit various parasites of the genus Plasmodium that are the cause of malaria.Analogy with the malaria-carrying mosquito points to the various kinds of anopheles, and perhaps to some species of the ordinary mosquito or culex, as being possible bearers of the disease. — 1901 formsanopheleses