A disease of apples, caused by the fungus Colletotrichum gloeosporioides.

dolomite

especially Alstonia constricta of New South Wales and Queensland. / Simarouba amara, a neotropical tree. / Petalostigma triloculare (long-leaved bitter bark), of Australia.

A disease of apples and pears, characterised by dark spots of dead cells, believed to be caused by calcium deficiency.

plural of bitter bark

The species of fungus Tylopilus felleus.

(of an environment) Very cold and unpleasant.

Citrullus colocynthis, a vine that bears a hard, bitter fruit. / A bitter preparation applied to an object to discourage dogs from chewing on it.

plural of bitter orange

plural of bitter vetch