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canker (noun) a disease that affects plants and animals; a dangerous tendency or an evil trend affecting a society badly.
Canker is usually a disease attacking trees or animals. In the case of trees, it damages the wood, and in the case of animals it causes ulcerous soars in their ears. Canker is also an evil causing harm to a society. It is a dangerous trend likely to spread among people and thus affect the whole community badly. Drunkenness, poverty, drugs, violence, etc., are examples of canker.
- Anita heaved a sigh of relief when the course of injections given by the veterinary doctor cured her pup of the soars caused by canker in the ear.
- The canker of drugs remains unchecked, as is the canker of violence in the present society. Effective measures must be taken to eradicate these kinds of canker.