12-Letter Words Containing: X,O,N

• a drug (trade names Atarax and Vistaril) used as a tranquilizer to treat anxiety and motion sickness

• the mathematical process of finding the maximum value of a function

• the act of raising to the highest possible point or condition or position

• a mildly narcotic analgesic drug (trade name Darvon) related to methadone but less addictive

• To establish a set of axioms that describe or govern certain phenomena

• Any of various typically yellow-brown dinoflagellates (originally grouped as genus Zooxanthella) now assigned to the genera Symbiodinium and Amphidinium, notably found in coral reefs.

• yellow carotenoid pigments in plants and animal fats and egg yolks

• an antibiotic derived from tetracycline that is effective against many infections

• A bicyclic heterocycle, 3,7-dihydropurin-6-one, that is an intermediate in the biosynthesis of uric acid.

• sparring with an imaginary opponent (for exercise or training)