SIDEREAL DAY

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

The time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day

Synonyms:

day; sidereal day

Classified under:

Nouns denoting time and temporal relations

Hypernyms ("sidereal day" is a kind of...):

time unit; unit of time (a unit for measuring time periods)

sidereal time (measured by the diurnal motion of stars)

Credits