Dictionary

sidereal second

noun

Definition of SIDEREAL SECOND

:  the 60th part of a sidereal minute

First Known Use of SIDEREAL SECOND

circa 1909

Browse

Next Word in the Dictionary: sidereal timePrevious Word in the Dictionary: sidereal periodAll Words Near: sidereal second
July 05, 2015
bunkum Hear it
insincere or foolish talk
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears