verb, smelled or smelt, smell⋅ing, noun | 1. | to perceive the odor or scent of through the nose by means of the olfactory nerves; inhale the odor of: I smell something burning. |
| 2. | to test by the sense of smell: She smelled the meat to see if it was fresh. |
| 3. | to perceive, detect, or discover by shrewdness or sagacity: The detective smelled foul play. |
| 4. | to perceive something by its odor or scent. |
| 5. | to search or investigate (fol. by around or about). |
| 6. | to give off or have an odor or scent: Do the yellow roses smell? |
| 7. | to give out an offensive odor; stink. |
| 8. | to have a particular odor (fol. by of): My hands smell of fish. |
| 9. | to have a trace or suggestion (fol. by of). |
| 10. | Informal. to be of inferior quality; stink: The play is good, but the direction smells. |
| 11. | Informal. to have the appearance or a suggestion of guilt or corruption: They may be honest, but the whole situation smells. |
| 12. | the sense of smell; faculty of smelling. |
| 13. | the quality of a thing that is or may be smelled; odor; scent. |
| 14. | a trace or suggestion. |
| 15. | an act or instance of smelling. |
| 16. | a pervading appearance, character, quality, or influence: the smell of money. |
| 17. | smell out, to look for or detect as if by smelling; search out: to smell out enemy spies. |
| 18. | smell up, to fill with an offensive odor; stink up: The garbage smelled up the yard. |
| 19. | smell a rat. rat (def. 6). |

smell (směl)
v. smelled or smelt (smělt), smell·ing, smells
To perceive the scent of something by means of the olfactory nerves. n.
The sense by which odors are perceived; the olfactory sense.
smell
In addition to the idioms beginning with smell, also see come up (smelling like) roses; stink (smell) to high heaven.
smell
the detection and identification by sensory organs of airborne chemicals. The concept of smell, as it applies to humans, becomes less distinct when invertebrates and lower vertebrates (fish and amphibians) are considered, because many lower animals detect chemicals in the environment by means of receptors in various locations on the body, and no invertebrate possesses a chemoreceptive structure resembling the vertebrate nasal cavity. For this reason, many authorities prefer to regard smell as distance chemoreception and taste as contact chemoreception.
Learn more about smell with a free trial on Britannica.com.