[ pur-mee-eys, -eyz ]
/ ˈpɜr miˌeɪs, -ˌeɪz /

noun Biochemistry.

any of the proteins that mediate the transport of various molecules across biological membranes.

Origin of permease

< French perméase (1956), equivalent to permé(able) permeable + -ase -ase Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for permease

[ pûrmē-ās′ ]


An enzyme that promotes the passage of a substance across a cell membrane.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.