noun
Etymology: crab (IV)
1.
a. : a wild apple typically with small sour fruits: as
(1) : a rather small round-headed Eurasiatic tree ( Malus sylvestris ) that is the chief ancestor of cultivated apples
(2) : any of several American wild apples — usually used in combination; see american crab apple , iowa crab , oregon crab apple , southern crabapple
(3) : siberian crab
b. : a cultivated apple with small usually brightly colored fruits: as
(1) : any of various apples having usually acid fruits used especially for preserving and being derived in whole or in part from the Siberian crab
(2) : a cultivated flowering crab
2. : the fruit of a crab apple
3. : a moderate reddish orange that is lighter, stronger, and slightly yellower than flamingo, redder, lighter, and stronger than coral red, and redder, lighter, and stronger than burnt ocher