'Tropical year' definitions:

Definition of 'tropical year'

From: WordNet
noun
The time for the earth to make one revolution around the sun, measured between two vernal equinoxes [syn: solar year, tropical year, astronomical year, equinoctial year]

Definition of 'Tropical year'

From: GCIDE
  • Year \Year\, n. [OE. yer, yeer, [yogh]er, AS. ge['a]r; akin to OFries. i?r, g?r, D. jaar, OHG. j[=a]r, G. jahr, Icel. [=a]r, Dan. aar, Sw. [*a]r, Goth. j?r, Gr. ? a season of the year, springtime, a part of the day, an hour, ? a year, Zend y[=a]re year. [root]4, 279. Cf. Hour, Yore.] [1913 Webster]
  • 1. The time of the apparent revolution of the sun trough the ecliptic; the period occupied by the earth in making its revolution around the sun, called the astronomical year; also, a period more or less nearly agreeing with this, adopted by various nations as a measure of time, and called the civil year; as, the common lunar year of 354 days, still in use among the Mohammedans; the year of 360 days, etc. In common usage, the year consists of 365 days, and every fourth year (called bissextile, or leap year) of
  • 366 days, a day being added to February on that year, on account of the excess above 365 days (see Bissextile). [1913 Webster]
  • Of twenty year of age he was, I guess. --Chaucer. [1913 Webster]
  • Note: The civil, or legal, year, in England, formerly commenced on the 25th of March. This practice continued throughout the British dominions till the year 1752. [1913 Webster]
  • 2. The time in which any planet completes a revolution about the sun; as, the year of Jupiter or of Saturn. [1913 Webster]
  • 3. pl. Age, or old age; as, a man in years. --Shak. [1913 Webster]
  • Anomalistic year, the time of the earth's revolution from perihelion to perihelion again, which is 365 days, 6 hours, 13 minutes, and 48 seconds.
  • A year's mind (Eccl.), a commemoration of a deceased person, as by a Mass, a year after his death. Cf. {A month's mind}, under Month.
  • Bissextile year. See Bissextile.
  • Canicular year. See under Canicular.
  • Civil year, the year adopted by any nation for the computation of time.
  • Common lunar year, the period of 12 lunar months, or 354 days.
  • Common year, each year of 365 days, as distinguished from leap year.
  • Embolismic year, or Intercalary lunar year, the period of
  • 13 lunar months, or 384 days.
  • Fiscal year (Com.), the year by which accounts are reckoned, or the year between one annual time of settlement, or balancing of accounts, and another.
  • Great year. See Platonic year, under Platonic.
  • Gregorian year, Julian year. See under Gregorian, and Julian.
  • Leap year. See Leap year, in the Vocabulary.
  • Lunar astronomical year, the period of 12 lunar synodical months, or 354 days, 8 hours, 48 minutes, 36 seconds.
  • Lunisolar year. See under Lunisolar.
  • Periodical year. See Anomalistic year, above.
  • Platonic year, Sabbatical year. See under Platonic, and Sabbatical.
  • Sidereal year, the time in which the sun, departing from any fixed star, returns to the same. This is 365 days, 6 hours, 9 minutes, and 9.3 seconds.
  • Tropical year. See under Tropical.
  • Year and a day (O. Eng. Law), a time to be allowed for an act or an event, in order that an entire year might be secured beyond all question. --Abbott.
  • Year of grace, any year of the Christian era; Anno Domini; A. D. or a. d. [1913 Webster] year 2000 bug

Words containing 'Tropical year'