Webster
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Webster’s Revised Unabridged Dictionary · 1913

Platonic

Pla·ton′ic, Pla·ton′ic·al, a. [L. Platonicus, Gr. Πλατωνικός: cf. F. platonique.] 1. Of or pertaining to Plato, or his philosophy, school, or opinions.

2. Pure, passionless; nonsexual; philosophical.

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.

Pla·ton′ic, n. A follower of Plato; a Platonist.

Webster’s Revised Unabridged Dictionary, Noah Porter, editor (Springfield, Mass.: G. & C. Merriam, 1913). Public domain. Text as transcribed by MICRA, Inc., from Project Gutenberg. Changed for Deep Dive Bible: Greek, which our source spelled in Latin letters, set in Greek letters; entries of one spelling merged into one article; Greek words our source left out (shown as “?”), read from the 1898 printing, from the same plates (the Library of Congress’s copy), where the place could be found with certainty. Of the others, 1,362 (a word or a single letter each) were inferred by AI from the context by the dictionary’s own rules and are marked with a wavy underline (tap or point at one to see the note); the rest, which could not be inferred with confidence, are left as “?”.