Longman Dictionary of Contemporary English
solar year
noun
EXAMPLES FROM CORPUS
▪ But since then our calendar year has been the same as the solar year.
▪ Our calendar year is based on the solar year - the number of days the earth takes to travel round the sun.
Wiktionary
solar year
n. The time it takes the Earth to pass once around the Sun, for instance from vernal equinox to vernal equinox.
WordNet
solar year
n. the time for the earth to make one revolution around the sun, measured between two vernal equinoxes [syn: tropical year, astronomical year, equinoctial year]
Usage examples of "solar year".
A solar year is the time it takes for the sun to complete an orbit of the Milky Way.