black canker (English, noun)
expansion: black canker (countable and uncountable, plural black cankers)
Senses:
glosses: Any of several plant diseases causing the formation of dark cankers.
tags: countable
uncountable
glosses: The larva of the turnip sawfly (Athalia rosae), an agricultural pest having the appearance of a black caterpillar.
tags: countable
uncountable
Forms:
form: black cankers
tags: plural