| 释义 |
anesthetic
anesthetican agent that produces insensibility: He was still groggy from the anesthetic.
Not to be confused with:analgesic – a remedy that relieves or allays pain: The doctor prescribed an analgesic for her aching muscles.antiseptic – an agent that destroys bacteria: She used an antiseptic ointment on the cut.an·es·thet·ic also an·aes·thet·ic A0276300 (ăn′ĭs-thĕt′ĭk)adj.1. Relating to or resembling anesthesia.2. Causing anesthesia.3. Insensitive.n.1. An agent that causes loss of sensation with or without the loss of consciousness.2. Something likened to this in effect: For some people watching television is an anesthetic for the mind.
[From Greek anaisthētos, without feeling : an-, without; see a-1 + aisthētos, perceptible (from aisthanesthai, to feel; see anesthesia).]
an′es·thet′i·cal·ly adv.anesthetic (ˌænɪsˈθɛtɪk) n, adj (Medicine) the usual US spelling of anaesthetican•es•thet•ic (ˌæn əsˈθɛt ɪk)
n. 1. a substance that produces anesthesia, as halothane, procaine, or ether. adj. 2. pertaining to or causing physical insensibility. 3. physically insensitive: an anesthetic state. [1840–50, Amer.] an`es•thet′i•cal•ly, adv. Thesaurus| Noun | 1. |  anesthetic - a drug that causes temporary loss of bodily sensationsanaesthetic, anaesthetic agent, anesthetic agentdrug - a substance that is used as a medicine or narcoticgeneral anaesthetic, general anesthetic - an anesthetic that anesthetizes the entire body and causes loss of consciousnessintravenous anesthetic - an anesthetic that produces anesthesia when injected into the circulatory systemlocal anaesthetic, local anesthetic, topical anaesthetic, topical anesthetic, local - anesthetic that numbs a particular area of the bodyspinal anaesthetic, spinal anesthetic - an anesthetic that is injected into the spine | | Adj. | 1. | anesthetic - relating to or producing insensibilityanaesthetic | | 2. |  anesthetic - characterized by insensibility; "the young girls are in a state of possession--blind and deaf and anesthetic"; "an anesthetic state"anaestheticinsensible - incapable of physical sensation; "insensible to pain"; "insensible earth" |
anesthetic also anaesthetic
adjectiveLacking passion and emotion:bloodless, dull, insensate, insensible, insensitive.Translationsanaesthetic (American) anesthetic (anəsˈθetik) noun a substance, used in surgery etc, that causes lack of feeling in a part of the body or unconsciousness. 麻醉劑 麻醉剂ˌanaesˈthesia (-ˈθiːziə) , ((American) -ʒə) noun loss of consciousness or of feeling caused by an anaesthetic. 麻醉 麻醉anaesthetist (əˈniːsθətist) , ((American) əˈnes-) noun the doctor responsible for giving an anaesthetic to the patient during a surgical operation. 麻醉師 麻醉师anaesthetize, anaesthetise (əˈniːsθətaiz) , ((American) əˈnes-) verb to make (someone) unable to feel pain etc (by giving an anaesthetic to). (為某人)麻醉 使麻醉anesthetic
anesthetic [an″es-thet´ik] 1. pertaining to, characterized by, or producing anesthesia.2. a drug or agent used to abolish the sensation of pain, to achieve adequate muscle relaxation during surgery, to calm fear and allay anxiety, and to produce amnesia for the event.
Inhalational anesthetics are gases or volatile liquids that produce general anesthesia when inhaled. The commonly used inhalational agents are halothane, enflurane, isoflurane, and nitrous oxide. Older agents, such as ether and cyclopropane, are now used infrequently. The mechanism of action of all inhalational anesthetics is thought to involve uptake of the gas in the lipid bilayer of cell membranes and interaction with the membrane proteins, resulting in inhibition of synaptic transmission of nerve impulses. For surgical anesthesia, these agents are usually used with preanesthetic medication, which includes sedatives or opiates to relieve preoperative and postoperative pain and tranquilizers to reduce anxiety. Neuromuscular blocking agents are used as relaxants" >muscle relaxants during surgery. They include tubocurarine, metocurine, succinylcholine, pancuronium, atracurium, and vecuronium.
Intravenous anesthetics are sedative hypnotic drugs that produce anesthesia in large doses. The most common of these are the phenol derivative propofol and ultra–short acting barbiturates such as thiopental and methohexital; these can be used alone for brief surgical procedures or for rapid induction of anesthesia maintained by inhalational anesthetics.
Other intravenous methods of anesthesia are neuroleptanalgesia, which uses a combination of the butyrophenone tranquilizer droperidol and the opioid fentanyl; neuroleptanesthesia, which uses neuroleptanalgesia plus nitrous oxide; and dissociative anesthesia, which uses ketamine, a drug related to the hallucinogens that produces profound analgesia.
Local anesthetics are drugs that block nerve conduction in the region where they are applied. They act by altering permeability of nerve cells to sodium ions and thus blocking conduction of nerve impulses. They may be applied topically or injected into the tissues. The first local anesthetic was cocaine. Synthetic local anesthetics are all given names ending in -caine; examples are procaine and lidocaine.an·es·thet·ic (an'es-thet'ik), 1. A compound that reversibly depresses neuronal function, which produces loss of ability to perceive pain and/or other sensations. 2. Collective designation for anesthetizing agents administered to a person at a particular time. 3. Characterized by loss of sensation or capable of producing loss of sensation. 4. Associated with or owing to the state of anesthesia. anesthetic also anaesthetic (ăn′ĭs-thĕt′ĭk)adj.1. Relating to or resembling anesthesia.2. Causing anesthesia.3. Insensitive.n.1. An agent that causes loss of sensation with or without the loss of consciousness.2. Something likened to this in effect: For some people watching television is an anesthetic for the mind.
an′es·thet′i·cal·ly adv.anesthetic adjective 1. Producing, referring or pertaining to, or characterized by anesthesia.2. Characterized by a loss of sensation or awareness; numbness noun An agent or drug that abolishes the sensation of pain or awareness of surroundings. See General anesthetic, Inhalation anesthetic, Local anesthetic, Opioid anesthetic.an·es·thet·ic (an'es-thet'ik) 1. A compound that depresses neuronal function, producing loss of ability to perceive pain and/or other sensations. 2. Collective designation for anesthetizing agents administered to a person at a particular time. 3. Characterized by loss of sensation or capable of producing loss of sensation. 4. Associated with or due to the state of anesthesia.
Synonym(s): anaesthetic. AnestheticMedicine that causes a loss of feeling, especially of pain. Some anesthetics also cause a loss of consciousness.Mentioned in: Anesthesia, General, Antinausea Drugs, Selective Serotonin Reuptake Inhibitors, Topical Anesthesiaan·es·thet·ic (an'es-thet'ik) 1. Agent or compound that reversibly depresses neuronal function, which produces loss of ability to perceive pain and/or other sensations. 2. Characterized by loss of sensation or capable of producing loss of sensation.
Synonym(s): anaesthetic. anesthetic
Synonyms for anestheticadj lacking passion and emotionSynonyms- bloodless
- dull
- insensate
- insensible
- insensitive
Synonyms for anestheticnoun a drug that causes temporary loss of bodily sensationsSynonyms- anaesthetic
- anaesthetic agent
- anesthetic agent
Related Words- drug
- general anaesthetic
- general anesthetic
- intravenous anesthetic
- local anaesthetic
- local anesthetic
- topical anaesthetic
- topical anesthetic
- local
- spinal anaesthetic
- spinal anesthetic
adj relating to or producing insensibilitySynonymsadj characterized by insensibilitySynonymsRelated Words |