tropical month

См. также в других словарях:

• tropical month — noun : a period that equals the mean time of the moon s revolution from any point of the ecliptic back to the same point and amounts to 27 days, 7 hours, 43 minutes, and 4.7 seconds of mean solar time * * * tropical month see under ↑month • • •… …   Useful english dictionary

• tropical month — The average period of the revolution of the moon about the earth with respect to the vernal equinox, a period of 27 days 7 h 43 min 4.7 s, or approximately 271/3 days …   Aviation dictionary

• Month — For the Egyptian hawk god, see Monthu. A month is a unit of time, used with calendars, which was first used and invented in Mesopotamia, as a natural period related to the motion of the Moon; month and Moon are cognates. The traditional concept… …   Wikipedia

• month — /munth/, n. 1. Also called calendar month. any of the twelve parts, as January or February, into which the calendar year is divided. 2. the time from any day of one calendar month to the corresponding day of the next. 3. a period of four weeks or …   Universalium

• Tropical cyclogenesis — is the technical term describing the development and strengthening of a tropical cyclone in the atmosphere.cite web | author = Arctic Climatology and Meteorology | url = http://nsidc.org/arcticmet/glossary/cyclogenesis.html | title = Definition… …   Wikipedia

• Tropical cyclone observation — has been carried out over the past couple of centuries in various ways. The passage of typhoons, hurricanes, as well as other tropical cyclones have been detected by word of mouth from sailors recently coming to port or by radio transmissions… …   Wikipedia

• Tropical — Trop ic*al, a. [Cf. L. tropicus of turning, Gr. ?. See {Tropic}, n.] 1. Of or pertaining to the tropics; characteristic of, or incident to, the tropics; being within the tropics; as, tropical climate; tropical latitudes; tropical heat; tropical… …   The Collaborative International Dictionary of English

• tropical — Month Month (m[u^]nth), n. [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 Collaborative International Dictionary of English

• Tropical wave — Tropical waves, or easterly waves, also known as African easterly waves in the Atlantic region, are a type of atmospheric trough, an elongated area of relatively low air pressure, oriented north to south, which move from east to west across the… …   Wikipedia

• Tropical Cyclone Emma (2006) — Tropical Cyclone Emma Category 1 cyclone (Australian scale) Tropical storm (SSHS) Satellite image of Cyclone Emma covering a large portion of Western Australia Formed …   Wikipedia

• Tropical Nursing — Tropical nursing is predominantly undertaken in tropical and sub tropical geographical areas. These countries generally have under developed health services and a lack of essential healthcare staff, including registered nurses and midwives. Dipl …   Wikipedia