noun.
A substance derived from amygdalin, promoted by some individuals as an antineoplastic drug but found by researchers to have no proven benefit in animals or humans.
noun.
A drug, derived from the amygdalin of apricotkernels, once thought capable of destroying cancer cells by the release of cyanide but later banned in the United States by the FDA.
Word Usage
"One you might want to consider is laetrile which is obtained from the seeds of apricots."