parts per million

part per mil·lion

P p

Definition of parts per million words

noun plural parts per million the number of units (of a substance) present in a million units of another substance 0

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 86% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

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