noun
[ U ] a substance that is produced by worker bees and that is fed to a young queen bee :
health food products containing royal jelly
noun
[ U ] a substance that is produced by worker bees and that is fed to a young queen bee :
health food products containing royal jelly
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005