- osmiumA chemical element (symbol Os) with atomic number 76: a hard, brittle, heavy, bluish-white transition metal found as a trace element in alloys, mostly in platinum ores.
- osmanthusAny of several widely distributed evergreen flowering plants, of the genus Osmanthus, often used to create several liquors, jams, jellies, syrups, and teas.
- euosmiteA fossil resin with a strong pleasant odour.
- osmazomeA substance formerly supposed to impart the characteristic meaty smell and taste to certain dishes.
- osmeteriumOne of a pair of scent organs in the larvae of certain swallowtail butterflies.
- -osmiaSmell; odour.
- osmicPertaining to, derived from, or containing, osmium; specifically, designating those compounds in which it has a higher valence.
- osmidrosisBody odour.
- osmo-osmosis
- phantosmiaA form of parosmia involving olfactory hallucinations in which the perceived smell is triggered apparently without cause rather than by another smell.