| n. | 1. | The matter which subsides to the bottom, from water or any other liquid; settlings; lees; dregs. |
| 2. | (Geol.) The material of which sedimentary rocks are formed. |
| Noun | 1. | sediment - matter deposited by some natural process Synonyms: deposit |
| Verb | 1. | sediment - deposit as a sediment |
| 2. | sediment - settle as sediment |