Placodus

noun
Plac·​o·​dus | \ ˈplakədəs\

Definition of Placodus

: a genus (the type of the family Placodontidae of the suborder Placodontia) comprising rather large extinct reptiles from the marine Trias of central Europe that have short broad bodies and broad flat molar teeth on the palate and dentary bones apparently adapted to crushing mollusks

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!

History and Etymology for Placodus

New Latin, from plac- + -odus

Keep scrolling for more

Comments on Placodus

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

WORD OF THE DAY

miscellaneous remnants or debris

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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