Platonic year

Platonic year
Platonic Pla*ton"ic, Platonical Pla*ton"ic*al, a. [L. Platonicus, Gr. ?: cf. F. platonique.] 1. Of or pertaining to Plato, or his philosophy, school, or opinions. [1913 Webster]

2. Pure, passionless; nonsexual; philosophical. [1913 Webster]

{Platonic bodies}, the five regular geometrical solids; namely, the tetrahedron, hexahedron or cube, octahedron, dodecahedron, and icosahedron.

{Platonic love}, a pure, spiritual affection, subsisting between persons of opposite sex, unmixed with carnal desires, and regarding the mind only and its excellences; -- a species of love for which Plato was a warm advocate.

{Platonic year} (Astron.), a period of time determined by the revolution of the equinoxes, or the space of time in which the stars and constellations return to their former places in respect to the equinoxes; -- called also {great year}. This revolution, which is caused by the precession of the equinoxes, is accomplished in about 26,000 years. --Barlow. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Platonic year — 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… …   The Collaborative International Dictionary of English

  • Platonic year — n. GREAT YEAR …   English World dictionary

  • Platonic year — noun time required for one complete cycle of the precession of the equinoxes, about 25,800 years • Syn: ↑great year • Hypernyms: ↑time period, ↑period of time, ↑period * * * Astron. a period of about 26,000 years, equal to the time required for a …   Useful english dictionary

  • Platonic year —    a unit of time used in astronomy. The earth s axis of rotation is not fixed in space; the attraction of the moon causes it to slowly trace out a circle in the sky. This motion, called precession, changes the orientation of the sky as seen from …   Dictionary of units of measurement

  • Platonic year — Astron. a period of about 26,000 years, equal to the time required for a complete revolution of the equinoxes. Also called great year. Cf. precession of the equinoxes. [1630 40] * * * …   Universalium

  • PLATONIC YEAR —    a period of 26,000 years, denoting the time of a complete revolution of the equinox …   The Nuttall Encyclopaedia

  • 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 …   The Collaborative International Dictionary of English

  • Year and a day — 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… …   The Collaborative International Dictionary of English

  • Year of grace — 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… …   The Collaborative International Dictionary of English

  • Platonic — Pla*ton ic, Platonical Pla*ton ic*al, a. [L. Platonicus, Gr. ?: cf. F. platonique.] 1. Of or pertaining to Plato, or his philosophy, school, or opinions. [1913 Webster] 2. Pure, passionless; nonsexual; philosophical. [1913 Webster] {Platonic… …   The Collaborative International Dictionary of English

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