FEED ON / OFF STH


Meaning of FEED ON / OFF STH in English

1.

( of an animal ) to eat sth :

Butterflies feed on the flowers of garden plants.

2.

(often disapproving ) to become stronger because of sth else :

Racism feeds on fear.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.