• amine formed from histidine that stimulates gastric secretions and dilates blood vessels; released by the human immune system during allergic reactions
Example sentence
• An increase in histamine levels can lead to symptoms such as itching, redness, and swelling.
• a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension
Example sentence
• Certain activities, such as eating chocolate or exercising, can increase dopamine levels.
• a general anesthetic and tranquilizer (not a barbiturate) that is administered intravenously or intramuscularly; used mainly by veterinarians or for minor surgery with geriatric or pediatric patients; taken in large doses it causes hallucinations similar to those associated with the use of PCP
Example sentence
• The doctor administered ketamine to the patient before surgery.
• a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
Example sentence
• I need to fill up the car with gasoline before we leave.
• a simple protein found in fish sperm; rich in arginine; simpler in composition than globulin or albumin; counteracts the anticoagulant effect of heparin
Example sentence
• The doctor administered protamine to reverse the effects of heparin.
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