Rhipidistia

plural noun Rhip·i·dis·tia \ ˌripəˈdistēə \

Definition of Rhipidistia

: an order of extinct crossopterygian fishes that have the basal bones of the median fins united into one mass — see holoptychiidae , osteolepidae

rhipidistian

adjective or noun

rhipidistid

\-tə̇d\ adjective or noun

There's more!

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!
Already a subscriber? Log in.

Origin and Etymology of rhipidistia

New Latin, from rhipid- + Greek histia, plural of histion sail; akin to Greek histanai to cause to stand


Seen and Heard

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

Love words? Need even more definitions?

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

Love words? Need even more definitions?

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