1 of 2


: flattened, plane
recognizes that there is a planate bedrock surface beneath the gravelsK. M. Hussey


2 of 2

transitive verb

: to erode to a plain : plane
former low domes were planated by wave erosionJournal of Geology

Word History



Late Latin planatus, past participle of planare to flatten, level, from Latin planus flat

Transitive verb

back-formation from planation

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.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near planate

Cite this Entry

“Planate.” Dictionary, Merriam-Webster, Accessed 2 Feb. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?