Astronomy. the appearance or time when a comet, especially a periodic one, is visible: the 1986 apparition of Halley's comet.
Origin: 1400–50;late Middle Englishapparicio(u)n < Anglo-French,Old French < Late Latinappāritiōn- (stem of appāritiō, as calque of Greekepipháneiaepiphany), equivalent to Latinappārit(us) (past participle of appārēre; see appear) + -iōn--ion
Related forms
ap·pa·ri·tion·al, adjective
non·ap·pa·ri·tion·al, adjective
Synonyms 1. spirit, shade. Apparition, phantasm, phantom are terms for a supernatural appearance. An apparition of a person or thing is an immaterial appearance that seems real, and is generally sudden or startling in its manifestation: an apparition of a headless horseman. Both phantom and phantasm denote an illusory appearance, as in a dream; the former may be pleasant, while the latter is usually frightening: a phantom of loveliness; a monstrous phantasm.
a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space
a low-mass star that emits low to average amounts of light that burn their hydrogen slowly over a long life span
the distance traversed by light in one mean solar year, about 5.88 trillion mi. (9.46 trillion km)
any of the small bodies, often remnants of comets, traveling through space: when such a body enters the earth's atmosphere it is heated to luminosity and becomes a meteor
the polestar or North Star, a star of the second magnitude close to the north pole of the heavens, in the constellation Ursa Minor
the time when the sun is farthest south from the celestial equator occurring around December 21st
1520s, from Anglo-Fr. aparicion, from O.Fr. apparition, used in reference to the Epiphany (revealing of Christ child to the Wise Men), from L.L. apparitionem (nom. apparitio) "an appearance," also "attendants," in classical Latin "service, servants," from pp. stem of apparere "appear" (see