15-Letter Words Containing: A,C,E,E,H,O,S

• The fused head and thorax of spiders and crustaceans

• extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds

• the branch of psychiatry concerned with psychological methods

• the treatment of mental or emotional problems by psychological means

• surgical interruption of a nerve pathway in the sympathetic nervous system

• an antihistamine (trade name Periactin) used to treat some allergic reactions

• an organic compound of creatine and phosphoric acid; found in the muscles of vertebrates where its hydrolysis releases energy for muscular contraction