Definition of parsec
: a unit of measure for interstellar space that is equal to 3.26 light-years and is the distance to an object having a parallax of one second as seen from points separated by one astronomical unit
Origin of parsec
parallax + second
First Known Use: 1913
Rhymes with parsec
Atrek, Aztec, Baalbek, bed check, bedeck, Birkbeck, Bishkek, blank check, boatneck, breakneck, bull neck, cowl-neck, crew neck, cromlech, crookneck, cross-check, ewe-neck, exec, fact-check, flight deck, flyspeck, forecheck, foredeck, gooseneck, gut check, haček, hatcheck, henpeck, high tech, hook check, in check, Kazbek, kopeck, limbeck, longneck, low-tech, Mixtec, on deck, OPEC, paycheck, pinchbeck, poop deck, rain check, rebec, ringneck, roll-neck, roughneck, samekh, shipwreck, spell-check, spot-check, Steinbeck, sundeck, tape deck, tenrec, Toltec, Uzbek, V-neck, vo-tech, Waldeck, Warbeck, well deck, wryneck, xebec
Learn More about parsec
Britannica.com: Encyclopedia article about "parsec"
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