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olfaction

American  
[ol-fak-shuhn, ohl-] / ɒlˈfæk ʃən, oʊl- /

noun

  1. the act of smelling.

  2. the sense of smell.


olfaction British  
/ ɒlˈfækʃən /

noun

  1. the sense of smell

  2. the act or function of smelling

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of olfaction

1840–50; < Latin olfact ( us ) past participle of olfacere to smell ( see olfactory) + -ion

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Of all the senses, olfaction — smell — must be the most primal and evocative, the most magically elusive.

From Salon • Jan. 5, 2025

Most species, including most mammals, really rely on olfaction to make sense of the world.

From Salon • Jan. 5, 2025

The interdisciplinary group of experts in olfaction, psychology, ecology, public health, atmospheric science and other fields are based at institutions in the U.S., the U.K.,

From Science Daily • May 15, 2024

At its core, the human sense of smell, or olfaction, is a complex chemical detection system in constant operation.

From Science Daily • May 15, 2024

The theories to explain olfaction are as numerous and complex as those for immunologic sensing.

From "The Lives of a Cell" by Lewis Thomas