rhinarium
/rʌɪˈnɛərɪəm/ /rɪˈnɛərɪəm/noun
1In certain insects: a flattened olfactory organ situated on an antenna.
- Rhinaria of various kinds are present in aphids and psyllids, and in some parasitic hymenopterans..
2 Zoology. A hairless moist area at the tip of the nose in many mammals.
Origin
Early 19th century (in an earlier sense). From post-classical Latin rhinarium hairless tip of an animal's nose from ancient Greek ῥιν-, ῥίς nose + post-classical Latin -arium.