Any of numerous varieties of crab apples cultivated for their small acidic (usually bright red) fruit used for preserves or as ornamentals for their blossoms.

synonyms: crab apple, cultivated crab apple.

Any of numerous wild apple trees usually with small acidic fruit.

synonyms: crab apple, wild apple.

Small sour apple; suitable for preserving:
— Crabapples make a tangy jelly.

synonym: crab apple.