Definition of anaesthetic in English:


Line breaks: an¦aes|thet¦ic
Pronunciation: /ˌanɪsˈθɛtɪk
(US anesthetic)


  • 1A substance that induces insensitivity to pain.
    More example sentences
    • Supplements that have the potential to cause major complications in perioperative patients are those that prolong bleeding and those that increase sedative effects of anesthetics and analgesics.
    • We're getting very close to medical anaesthetics like halothane, though.
    • There was little difference in maternal safety between inhalational anaesthetics used for general anaesthesia.
    narcotic, soporific, stupefacient, painkiller, sedative, anodyne, analgesic, opiate; general, local
  • 2 (anaesthetics) [treated as singular] The study or practice of anaesthesia: he trained as a medical technical officer, working in anaesthetics
    More example sentences
    • Those who work in paediatrics, anaesthetics and surgery work an average of 84 or 85 hours.
    • This generated what is called a ‘trauma call’ - the relevant hospital specialists from orthopaedics, surgery and anaesthetics were called to the department to await the arrival of the ambulance.
    • Among the services which board management are proposing to hit are radiology, anaesthetics, foster care and services for those with autism, addiction problems and disabilities.


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  • Inducing or relating to insensitivity to pain: anaesthetic drugs and gases
    More example sentences
    • We investigated mortality in a population of trauma patients who were intubated before reaching hospital without anaesthetic drugs being used.
    • It is also possible to induce anaesthesia with anaesthetic gases, breathed through a mask.
    • After relieving his pain with a quick nap induced by inhaled anesthetic gas, treatment with heat, fluids and antibiotics could be commenced.
    narcotic, numbing, deadening, dulling, soporific, stupefacient, painkilling, sedative, analgesic, anodyne, opiate


mid 19th century: from Greek anaisthētos 'insensible', related to anaisthēsia (see anaesthesia), + -ic.

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