noun: (economics) Initialism of producer price index. [(economics) A statistical estimate of the level of prices of goods and services bought by domestic producers.]
noun: (graphics) Initialism of pixels per inch.
noun: (biochemistry) Initialism of proton-pump inhibitor.
noun: (Mormonism) Initialism of personal priesthood interview.
noun: (biochemistry) Initialism of protein–protein interaction.
noun: Initialism of Payment protection insurance.
noun: (linguistics) Initialism of positive polarity item. [(linguistics) A polarity item that only appears in an affirmative (positive) licensing context.]
