1
a
: a quality of something that stimulates the olfactory organ : scent
b
: a sensation resulting from adequate stimulation of the olfactory organ : smell
2
a
: a characteristic or predominant quality : flavor
the odor of sanctity
b
: repute, estimation
in bad odor
3
archaic : something that emits a sweet or pleasing scent : perfume
odored adjective
odorless adjective
Choose the Right Synonym for odor

smell, scent, odor, aroma mean the quality that makes a thing perceptible to the olfactory sense.

smell implies solely the sensation without suggestion of quality or character.

an odd smell permeated the room

scent applies to the characteristic smell given off by a substance, an animal, or a plant.

the scent of lilacs

odor may imply a stronger or more readily distinguished scent or it may be equivalent to smell.

a cheese with a strong odor

aroma suggests a somewhat penetrating usually pleasant odor.

the aroma of freshly ground coffee

Examples of odor in a Sentence

The cheese has a strong odor. This deodorant prevents bad odor from occurring.
Recent Examples on the Web And all of the people who moved here for the view, clean air and lower taxes have to adjust to odors carried on the prevailing winds. Dean Minnich, Baltimore Sun, 20 July 2024 Police smelled the odor of intoxicants coming from Espino, then noticed multiple open cans of Crown Royal Peach Tea Whisky in Espino's vehicle. Adrienne Davis, Journal Sentinel, 19 July 2024 But almost four years later, on Nov. 13, 2023, a postal worker smelled a foul odor, noticed the mail was not being retrieved, and alerted law enforcement. Lisa J. Huriash, Sun Sentinel, 19 July 2024 Some people may turn to it as a DIY remedy for particularly tough stains or to freshen up older garments that may be holding onto bad odors. Aksha Mittapalli, Better Homes & Gardens, 18 July 2024 See all Example Sentences for odor 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'odor.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Middle English odour, borrowed from Anglo-French odur, borrowed from Latin odor (early Latin odōs), going back to *od-os-, s-stem derivative of a verbal base *od- (whence Latin oleō, olēre, also olō, olere "to give off a smell, smell (of)," from *odere), going back to Indo-European *h3ed-, whence Greek ózein "to smell, give off an odor," Armenian hot "smell, odor" (probably also an s-stem), Lithuanian úodžiu, úosti "to smell, sniff"

Note: The length in the Baltic form is attributed to Winter's Law, which is believed to lengthen vowels before an original voiced, unaspirated stop in Baltic and Slavic in certain environments.

First Known Use

13th century, in the meaning defined at sense 1a

Time Traveler
The first known use of odor was in the 13th century

Dictionary Entries Near odor

Cite this Entry

“Odor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/odor. Accessed 27 Jul. 2024.

Kids Definition

odor

noun
: the quality of something that stimulates the sense of smell : scent
also : a sensation resulting from such stimulation
odorless adjective

Medical Definition

odor

noun
variants or chiefly British odour
1
: a quality of something that stimulates the olfactory organ : smell
2
: a sensation resulting from adequate chemical stimulation of the olfactory organ
a disagreeable odor
odored adjective
or chiefly British odoured
odorless adjective
or chiefly British odourless

More from Merriam-Webster on odor

Last Updated: - Updated example sentences
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