olfactory organ

noun

Medical Definition of olfactory organ

: an organ of chemical sense that receives stimuli interpreted as odors from volatile and soluble substances in low dilution, that lies in the walls of the upper part of the nasal cavity, and that forms a mucous membrane continuous with the rest of the lining of the nasal cavity and made up of tall columnar sustentacular cells containing golden brown pigment interspersed with olfactory cells the outer processes of which project between the sustentacular cells as small vesicles surmounted by delicate sensory filaments and the inner ends of which are continuous with fibers of the olfactory nerves

Learn More about olfactory organ

Cite this Entry

“Olfactory organ.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/olfactory%20organ. Accessed 13 Aug. 2020.

Comments on olfactory organ

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

WORD OF THE DAY

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt painting a young scholar and his tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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