plural noun Li·this·ti·da \-stədə\

Definition of Lithistida

in former classifications

  1. :  an order of sponges (class Demospongiae) comprising well-preserved fossil sponges with a massive reticulate skeleton of fused siliceous spicules

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!

Origin and Etymology of lithistida

New Latin, from (assumed) Greek lithistos (verbal of Greek lithizein to resemble a stone, from lith- + -izein -ize) + New Latin -ida

Seen and Heard

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


quaintly unconventional or refined

Get Word of the Day daily email!