Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

megaparsec

play
noun mega·par·sec \ˌme-gə-ˈpär-ˌsek\

Definition of megaparsec

  1. :  a unit of measure for distances in intergalactic space equal to one million parsecs



Origin and Etymology of megaparsec

International Scientific Vocabulary


First Known Use: 1920


Learn More about megaparsec


Seen and Heard

What made you want to look up megaparsec? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

not forbidden by law

Get Word of the Day daily email!