Link Centre Dictionary

parsec

par·sec

UK/ˈpɑː.sɛk/ US/ˈpɑɹ.sɛk/ uncommon

noun

1.

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

Origin

Contraction of parallax second.

Related words

Broader terms

WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.