months

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

Sidereal \Si*de"re*al\, adjective [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.

From The Collaborative International Dictionary of English v.0.48 [gcide]:

Month \Month\ (m[u^]nth), noun [OE. month, moneth, AS. m[=o]n[eth], m[=o]na[eth]; akin to m[=o]na moon, and to D. maand month, G. monat, OHG. m[=a]n[=o]d, Icel. m[=a]nu[eth]r, m[=a]na[eth]r, Goth. m[=e]n[=o][thorn]s. [root]272. See {Moon}.] One of the twelve portions into which the year is divided; the twelfth part of a year, corresponding nearly to the length of a synodic revolution of the moon, -- whence the name. In popular use, a period of four weeks is often called a month.

Note: In the common law, a month is a lunar month, or twenty-eight days, unless otherwise expressed. --Blackstone. In the United States the rule of the common law is generally changed, and a month is declared to mean a calendar month. --Cooley's Blackstone.

{A month mind}. (a) A strong or abnormal desire. [Obs.] --Shak. (b) A celebration made in remembrance of a deceased person a month after death. --Strype.

{Calendar months}, the months as adjusted in the common or Gregorian calendar; April, June, September, and November, containing 30 days, and the rest 31, except February, which, in common years, has 28, and in leap years 29.

{Lunar month}, the period of one revolution of the moon, particularly a synodical revolution; but several kinds are distinguished, as the {synodical month}, or period from one new moon to the next, in mean length 29 d. 12 h. 44 m. 2.87 s.; the {nodical month}, or time of revolution from one node to the same again, in length 27 d. 5 h. 5 m. 36 s.; the {sidereal}, or time of revolution from a star to the same again, equal to 27 d. 7 h. 43 m. 11.5 s.; the {anomalistic}, or time of revolution from perigee to perigee again, in length 27 d. 13 h. 18 m. 37.4 s.; and the {tropical}, or time of passing from any point of the ecliptic to the same again, equal to 27 d. 7 h. 43 m. 4.7 s.

{Solar month}, the time in which the sun passes through one sign of the zodiac, in mean length 30 d. 10 h. 29 m. 4.1 s.

From WordNet (r) 3.0 (2006) [wn]:

month

noun

1: one of the twelve divisions of the calendar year; "he paid the bill last month" [syn: {calendar month}, {month}]

2: a time unit of approximately 30 days; "he was given a month to pay the bill"


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Wednesday, April 1, 2015 3:07:45 AM Coordinated Universal Time (UTC)

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