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...
- Veterans Day (originally known as Armistice Day) is a federal holiday in the United States observed annually on November 11, for honoring military veterans...
- 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...
- Remembrance Day (also known as Poppy Day owing to the tradition of wearing a remembrance poppy) is a memorial day observed in Commonwealth member states...
- "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 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)...
- Children's Day is a commemorative date celebrated annually in honour of children, whose date of observance varies by country. In 1925, International Children's...
- Singles' Day (simplified Chinese: 光棍节; traditional Chinese: 光棍節) or Double 11 (simplified Chinese: 双11; traditional Chinese: 雙11) is an unofficial Chinese...
- Memorial Day (originally known as Decoration Day) is one of the federal holidays in the United States for honoring and mourning the U.S. military personnel...