urogaster

noun

uro·​gas·​ter

¦yu̇rə¦gastə(r)

plural -s

1

: the urinary tract (as of the embryo) including the allantoic cavity

2

[New Latin, from ur- entry 2 + -gaster] : the posterior division of the gastric region of a crustacean (as a crab)

urogastric

-strik

adjective

Word History

Etymology

New Latin, from ur- entry 1 + -gaster

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!