| Main Entry: | |
| Part of Speech: | noun |
| Definition: | rock |
| Synonyms: | clay, sediment, slate |
| Main Entry: | sedimentary rock |
| Part of Speech: | noun |
| Definition: | rock formed from sediment |
| Synonyms: | chalk, chemical sedimentary rock, clastic rock, conglomerate, limestone, lithified sediment, mechanical sedimentary rock, nonclastic rock, sandstone, shale, stratified rock |