(medicine, dated) A form of scarlet fever characterized by ulcerated or putrid sore throat.

A fly that preys on fruit.

plural of canker fly

Any of several plant diseases causing the formation of dark cankers. / The larva of the turnip sawfly (Athalia rosae), an agricultural pest having the appearance of a black caterpillar.

plural of black canker

The state or quality of being cankered.

In a cankered manner.