parsec

/ˈpɑrˌsɛk/
IPA guide

Other forms: parsecs

Definitions of parsec
  1. noun
    a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years
    synonyms: secpar
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    type of:
    astronomy unit
    a linear unit used for astronomical distances
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