Synonyms to nitrous oxide

anesthetic, Mickey Finn, Pentothal, alleviating, alleviative, analgesic, anodyne, assuasive, balmy, balsamic, benumbing, cathartic, chloroform, cleansing, cocaine, deadening, demulcent, dope, drug, dull, dulling, easing, emollient, ether, ethyl chloride, ethylene, gas, hard, hypnotic, impassible, impenetrable, impermeable, impervious, insensate, insensitive, knockout drop, lenitive, lullaby, mandrake, menthol, mitigating, mitigative, morphia, morphine, narcotic, nightcap, numbing, obtuse, opiate, opium, pain-killer, pain-killing, palliative, poppy, purgative, relieving, remedial, rocky, sedative, sleep-bringer, sleep-inducer, sleep-producer, sleeping pill, softening, somnifacient, soothing, soporific, stunning, stupefying, subduing, tranquilizer, KO, anesthetize, annihilate, bedaze, benumb, bereave of life, besot, blunt, carry away, carry off, coldcock, cut down, cut off, deaden, deprive of life, desensitize, destroy, dispatch, dispose of, do away with, do for, do to death, end, etherize, execute, exterminate, finish,