PPB

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See also: ppb

English[edit]

Etymology 1[edit]

Noun[edit]

PPB pl (plural only)

  1. Initialism of parts per billion.

Etymology 2[edit]

Noun[edit]

PPB (plural PPBs)

  1. (economics) Initialism of production-possibility boundary.
Synonyms[edit]

Anagrams[edit]

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