feed upon

The species feed upon other insects and are noted for their voracity

Any one of many species of venomous aquatic snakes of the family Hydrophidae, having a flattened tail and living entirely in the sea, especially in the warmer parts of the Indian and Pacific Oceans. They feed upon fishes, and are mostly of moderate size, but some species become eight or ten feet long and four inches broad.

A feast at which the guests are supposed to feed upon the odors only of the viands.

Most of the species feed upon the juices of plants, and some, as those which attack grain, are very injurious to crops