anesthetic

American  

[an-uhs-thet-ik] / ˌæn əsˈθɛt ɪk /

Or anaesthetic

noun

• anesthetics
  plural

1. a substance that produces anesthesia, as halothane, procaine, or ether.

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adjective

1. pertaining to or causing physical insensibility.

   an anesthetic gas.

2. physically insensitive.

   Halothane is used to produce an anesthetic state.

anesthetic British  

/ ˌænɪsˈθɛtɪk /

noun

1. the usual US spelling of anaesthetic

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anesthetic Scientific  

/ ăn′ĭs-thĕt′ĭk /

1. A drug that temporarily depresses neuronal function, producing total or partial loss of sensation with or without the loss of consciousness.

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anesthetic Cultural  

1. A substance that causes loss of sensation or consciousness. With the aid of an anesthetic, people can undergo surgery without pain. (See general anesthetic and local anesthetic.)

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Other Word Forms

Derived Forms

• nonanesthetic
  adjective
• postanesthetic
  adjective
• semianesthetic
  adjective
• anesthetically
  adverb

Inflected Forms

Nouns

• anesthetics
  plural

Etymology

Origin of anesthetic

1840–50, < Greek anaísthēt ( os ) without feeling, senseless + -ic; see an- ¹, aesthetic

Compare meaning

How does anesthetic compare to similar and commonly confused words? Explore the most common comparisons:

• anesthesia vs. anesthetic

Explanation

The next time you go to the dentist, make sure you know the word anesthetic. This drug causes a temporary loss of feeling, making it your best friend if the drill has to be used. The word anesthetic traces back to the Greek word anaisthēsia, from a combination of an-, meaning “without” and aisthēsis, meaning “sensation.” If you take an anesthetic that’s what happens: you are temporarily without sensation, meaning you feel no pain. A general anesthetic causes temporary unconsciousness and is often used during surgeries. A local anesthetic numbs just one area, such your mouth or a finger.

Example Sentences

See Examples For:

anesthetic anesthetics

"Most of these smuggled animals will be in a weak condition... some are given sedatives or even mild anesthetic to keep them from moving or making noise," Thanawadee said.

From Barron's ● Sep. 10, 2026

Nostalgia for Broadway’s golden age is proving to be a potent societal anesthetic.

From Los Angeles Times ● Jun. 22, 2026

And there’s still lots we don’t know about how these drugs work on the brain, even though thousands of patients undergo a general anesthetic every day.

From The Wall Street Journal ● Jun. 3, 2026

A local anesthetic provides some relief, but providers still recommend taking ibuprofen shortly before your appointment.

From Slate ● Aug. 27, 2024

Hours later, the soldier came round from his anesthetic and muttered the student nurse’s name while the surgical ward sister was standing close by.

From "Atonement" by Ian McEwan

Israel struck the Tofigh Daru Research & Engineering Co., one of Iran’s largest pharmaceutical companies which produces anesthetics and cancer drugs.

From The Wall Street Journal ● Apr. 16, 2026

Their findings are detailed in the paper 'Growth in production and environmental deposition of trifluoroacetic acid due to long-lived CFC replacements and anesthetics'.

From Science Daily ● Feb. 6, 2026

The reason, its authors wrote, was that “we had no data available on analgesics or possible local anesthetics used during ritual circumcisions in our cohort, so we were unable to address the paracetamol hypothesis directly.”

From Los Angeles Times ● Oct. 14, 2025

Les spent long hours in the surgical theater, which in Macclesfield had little in the way of ventilation, and Joy typically found that he came home smelling of anesthetics, antiseptics and blood.

From New York Times ● Jun. 14, 2024

The individual exposed to DDT, for example, is almost certain to be exposed to other liver-damaging hydrocarbons, which are so widely used as solvents, paint removers, degreasing agents, dry-cleaning fluids, and anesthetics.

From "Silent Spring" by Rachel Carson

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