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permittivity
permutate
permutation
permute
pernicious
pernicious anemia
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peroneal
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permease
per·me·ase [ púrmee àyss, púrmee àyz ] (plural per·me·ases)


noun 
Definition:
 
enzyme: a protein in bacterial cell membranes that allows a solute to enter the cell
[Mid-20th century. <permeate]
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