The sense of smell, or olfaction, [nb 1] is the special sense through which smells (or odors) are perceived. The sense of smell has many functions, including detecting desirable foods, hazards, and pheromones, and plays a role in taste.

From Simple English Wikipedia, the free encyclopedia Olfaction is the sense of smell. The sense of smell is how a human or animal notices a smell (or odour) by using the nose.

From Wikipedia, the free encyclopedia Olfaction (also known as olfactics or smell) refers to the sense of smell. This sense is mediated by specialized sensory cells of the nasal cavity of vertebrates, and, by analogy, sensory cells of the antennae of invertebrates.