follow Dictionary.com

11 Trending Words of 2014

arc second

noun
1.
Astronomy, second2 (def 4).
Also, arc-second.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source

Word of the Day

Difficulty index for arc second

Few English speakers likely know this word

Word Value for arcsecond

0
0
Scrabble Words With Friends

Nearby words for arcsecond