canker

Etymology 1
From, , from , akin to Dutch , Old High German. Ultimately from. , a later borrowing from Latin, and, which came through French.

Noun

 * 1)  A plant disease marked by gradual decay.
 * 2) A region of dead plant tissue caused by such a disease.
 * 3) A worm or grub that destroys plant buds or leaves; cankerworm.
 * 4) A corroding or sloughing ulcer; especially a spreading gangrenous ulcer or collection of ulcers in or about the mouth.
 * 5) Anything which corrodes, corrupts, or destroys.
 * 6) A kind of wild rose; the dog rose.
 * 7) An obstinate and often incurable disease of a horse's foot, characterized by separation of the horny portion and the development of fungoid growths. Usually resulting from neglected thrush.
 * 8) An avian disease affecting doves, poultry, parrots and birds of prey, caused by.
 * 1) A kind of wild rose; the dog rose.
 * 2) An obstinate and often incurable disease of a horse's foot, characterized by separation of the horny portion and the development of fungoid growths. Usually resulting from neglected thrush.
 * 3) An avian disease affecting doves, poultry, parrots and birds of prey, caused by.
 * 1) An obstinate and often incurable disease of a horse's foot, characterized by separation of the horny portion and the development of fungoid growths. Usually resulting from neglected thrush.
 * 2) An avian disease affecting doves, poultry, parrots and birds of prey, caused by.

Synonyms

 * , canker of the mouth, noma
 * avian trichomoniasis, roup

Translations

 * Russian:


 * Greek:
 * Ancient: φαγέδαινα
 * Plautdietsch: Schwäa


 * Dutch: ,
 * German: gelber Knopf
 * Polish: żółty guzek

Etymology 2
From, from the noun (see above).

Verb

 * 1)  To affect as a canker; to eat away; to corrode; to consume.
 * 2)  To infect or pollute; to corrupt.
 * 3)  To waste away, grow rusty, or be oxidized, as a mineral.
 * 4)  To be or become diseased, or as if diseased, with canker; to grow corrupt; to become venomous.
 * 1)  To be or become diseased, or as if diseased, with canker; to grow corrupt; to become venomous.

Etymology
,, , akin to Dutch , Old High German. From.

Noun

 * 1) Bad temper.

Verb

 * 1)  To become bad-tempered, to fret, to worry.