pseudostoma

noun

pseu·​dos·​to·​ma
süˈdästəmə
1
: a stigma in serous membrane filled by intercellular substance or otherwise closed
2
: the temporary mouth of a larval echinoderm
3
: the osculum of a sponge
pseudostomatous
¦südə¦stōmətəs
-täm-
adjective
or pseudostomous
(ˈ)sü¦dästəməs

Word History

Etymology

New Latin, from pseud- + stoma

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

  1. Expanded definitions
  2. Detailed etymologies
  3. Advanced search tools
  4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now

Dictionary Entries Near pseudostoma

Cite this Entry

“Pseudostoma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pseudostoma. Accessed 18 Dec. 2024.

Love words? Need even more definitions?

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