osphradium (plural osphradia)
- (zoology) The olfactory organ in certain molluscs, linked with the respiration organ. Its main function is to test incoming water for silt and other possible food particles.
Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for osphradium in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913)