Definition of osphradium
: a single or paired sense organ connected with one of the visceral ganglia and situated near the gill of most aquatic mollusks that is supposed to be alfactory or to test the purity of the water passing to the gills
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!
Origin and Etymology of osphradium
New Latin, from Middle Greek osphradion nosegay, diminutive of Late Greek osphra smell; akin to Greek ozein to smell
Seen and Heard
What made you want to look up osphradium? Please tell us where you read or heard it (including the quote, if possible).