Definition of day. Meaning of day. Synonyms of day

Here you will find one or more explanations in English for the word day. Also in the bottom left of the page several parts of wikipedia pages related to the word day and, of course, day synonyms and on the right images related to the word day.

Definition of day

day
Sidereal Si*de"re*al, a. [L. sidereus, from sidus, sideris, a constellation, a star. Cf. Sideral, Consider, Desire.] 1. Relating to the stars; starry; astral; as, sidereal astronomy. 2. (Astron.) Measuring by the apparent motion of the stars; designated, marked out, or accompanied, by a return to the same position in respect to the stars; as, the sidereal revolution of a planet; a sidereal day. Sidereal clock, day, month, year. See under Clock, Day, etc. Sideral time, time as reckoned by sideral days, or, taking the sidereal day as the unit, the time elapsed since a transit of the vernal equinox, reckoned in parts of a sidereal day. This is, strictly, apparent sidereal time, mean sidereal time being reckoned from the transit, not of the true, but of the mean, equinoctial point.

Meaning of day from wikipedia

- A day is the time period of a full rotation of the Earth with respect to the Sun. On average, this is 24 hours (86,400 seconds). As a day p****es at a...
- Look up day, days, or Appendix:Variations of "day" in Wiktionary, the free dictionary. A day is a unit of temporal measurement for a literal day or epoch...
- Saint Andrew's Day, also called the Feast of Saint Andrew or Andermas, is the feast day of Andrew the Apostle. It is celebrated on 30 November. Saint Andrew...
- Sandra Day O'Connor (March 26, 1930 – December 1, 2023) was an American attorney, politician, and jurist who served as an ****ociate justice of the Supreme...
- day by day in Wiktionary, the free dictionary. Day by Day may refer to: "Day by Day", a po****r prayer ascribed to Richard of Chichester Day by Day (book)...
- Day to Day (D2D) was a one-hour w****day American radio newsmagazine distributed by National Public Radio (NPR), and produced by NPR in collaboration with...
- Day Day Up (Chinese: 天天向上; pinyin: Tiāntiān xiàngshàng) is a po****r Chinese talk show broadcast on Hunan Television. The show is co-hosted by Wang Han...
- "This Is the Day" is a song written by Matt Johnson and originally released as a single by his band The The on 2 September 1983. It reached number 71...
- Day After Day may refer to: "Day After Day" (Badfinger song) Day After Day: Live, a 1990 album by Badfinger "Day After Day (The Show Must Go On)", a song...
- Boxing Day is a holiday celebrated after Christmas Day, occurring on the second day of Christmastide (26 December). Though it originated as a holiday to...