Definition of meclozine in US English:

meclozine

(also meclizine)

noun

Pharmacology
  • A piperazine derivative, C₂₅H₂₇ClN₂, with antihistamine properties, used mainly as an anti-emetic, especially in preventing motion sickness. [Meclozine is the International Nonproprietary Name and British Approved Name; meclizine is the name in the Pharmacopeia of the U.S.A.]

Origin

1950s; earliest use found in Journal of Pharmacological and Experimental Therapeutics. Apparently earliest as meclizine from me- + -clizine. In form meclozine perhaps remodelled after hydrochloride.

Pronunciation

meclozine

/ˈmɛkləziːn/