sedimentary rock

noun

Definition of sedimentary rock

  1. :  rock formed of mechanical, chemical, or organic sediment: such as a :  clastic rock (as conglomerate, sandstone, or shale) formed of fragments of other rock transported from its source and deposited in water b :  rock (as rock salt or gypsum) formed by precipitation from solution c :  rock (as limestone) formed from secretions of organisms

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Seen and Heard

What made you want to look up sedimentary rock? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a trip made at another's expense

Get Word of the Day daily email!