permease definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Any of several cell-membrane proteins that function as channels for the transport of a specific molecule in or out of the cell.
Origin: perme(ate) + -ase.
permease - Medical Definition
An enzyme that promotes the passage of a substance across a cell membrane.