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peppercorn
peppercorn rent
peppered moth
peppergrass
pepperidge
peppermint
pepperoni
peppershaker
peppershrike
pepperwort
peppery
pepsin
pepsinogen
peptic
peptic ulcer
peptidase
peptide
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per-

per-


prefix 
Definition:
 
1. through
permeate

2. containing a large proportion of an element
peroxide

3. containing an element in its highest oxidation state
perchlorate

4. containing a peroxide group
peracid

[< Latin per "through"]
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