| Noun | 1. | bottom-feeder - a scavenger that feeds low on the food chain scavenger - any animal that feeds on refuse and other decaying organic matter |
| 2. | bottom-feeder - a fish that lives and feeds on the bottom of a body of water fish - any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills; "the shark is a large fish"; "in the living room there was a tank of colorful fish" mullet - bottom dwelling marine warm water fishes with two barbels on the chin |