CEFR C2

olfactory organ

noun phrase

Meaning

A specialized biological structure used by an animal to detect and process chemical signals in the environment as the sense of smell.

Examples

  • The shark uses its highly sensitive olfactory organ to detect minute traces of blood in the water from miles away.
  • In many insects, the antennae serve as the primary olfactory organ for locating food sources and mates.

Synonyms: nose, scent receptor, nasal cavity, chemoreceptor