permease

 [pur-mee-eys, -eyz]  

per·me·ase

   [pur-mee-eys, -eyz]
noun Biochemistry.
any of the proteins that mediate the transport of various molecules across biological membranes.
Origin:
< French perméase (1956), equivalent to permé(able) permeable + -ase -ase
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Permease is always a great word to know.
So is erbium. Does it mean:
Symbol: Er; atomic weight: 167.26; atomic number: 68
Symbol: Bk; atomic weight: 247; atomic number: 97
LEARN MORE UNUSUAL WORDS WITH WORD DYNAMO...
American Heritage
Medical Dictionary

permease per·me·ase (pûr'mē-ās')
n.
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.
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