smelling salts

American  

noun

(used with a plural verb)

1. a preparation for smelling, essentially of ammonium carbonate with some agreeable scent, used as a stimulant and restorative.

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smelling salts British  

plural noun

1. a pungent preparation containing crystals of ammonium carbonate that has a stimulant action when sniffed in cases of faintness, headache, etc

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Etymology

Origin of smelling salts

First recorded in 1830–40

Example Sentences

The noted Roman naturalist and historian was indeed an early expert in fermentation, yet he also wrote about “sal ammoniac” — yes, smelling salts — in his encyclopedic work “Natural History,” published in 79 A.D.

From Los Angeles Times • Jan. 12, 2026

The NFL came to his rescue, saying smelling salts — also known as ammonia inhalants, or AIs — were not banned.

From Los Angeles Times • Jan. 12, 2026

These days, the Federal Aviation Administration requires that U.S. airlines carry smelling salts onboard in case a pilot needs to be awakened after fainting.

From Los Angeles Times • Jan. 12, 2026

In the business of the worst moment, there may be unanimity, just as soon as the effects of the smelling salts and the large brandies kick in.

From BBC • Nov. 8, 2025

Their girls are on them immediately, passing smelling salts under their noses and escorting them out, half carrying them.

From "Dread Nation" by Justina Ireland