12-Letter Words Containing: E,H,N,R,Y

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

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

• operating in unison

• an instrument that indicates whether two periodic motions are synchronous (especially an instrument that enables a pilot to synchronize the propellers of a plane that has two or more engines)

• make synchronous and adjust in time or manner

• happen at the same time

• make (motion picture sound) exactly simultaneous with the action

• arrange or represent events so that they co-occur

• operate simultaneously

• cause to indicate the same time or rate

• the use of hypnosis in psychotherapy

• The diphenol para-dihydroxy benzene, used as a mild reducing agent in photographic developing; isomeric with catechol and resorcinol.