Definitions from Wiktionary (PEI)

▸ noun:  A surname.
▸ noun:  Initialism of Prince Edward Island, a province of Canada. [A province in eastern Canada. Capital: Charlottetown.]
▸ noun:  Abbreviation of polyethyleneimine. [A polymer of ethyleneimine, often mixed with acrylamides]
▸ noun:  Initialism of pancreatic exocrine insufficiency.
▸ Also see pei

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