lunar : Idioms & Phrases


Common lunar year

  • the period of 12 lunar months, or 354 days.
Webster 1913

Embolismic year, ∨ Intercalary lunar year

  • the period of 13 lunar months, or 384 days.
Webster 1913

lunar calendar

  • noun a calendar based on lunar cycles
WordNet

Lunar caustic

  • noun silver nitrate fused into sticks and formerly used as a caustic
WordNet
  • (Med. Chem.), silver nitrate prepared to be used as a cautery; so named because silver was called luna by the ancient alchemists.
Webster 1913

lunar crater

  • noun a crater on the Earth's Moon
WordNet

Lunar cycle

  • . Same as Metonic cycle. See under Cycle.
Webster 1913

lunar day

  • noun the period of time taken for the moon to make one full rotation on its axis (about 27.3 sidereal days)
WordNet

Lunar distance

  • the angular distance of the moon from the sun, a star, or a planet, employed for determining longitude by the lunar method.
Webster 1913

lunar eclipse

  • noun the earth interrupts light shining on the moon
WordNet

lunar excursion module

  • noun a spacecraft that carries astronauts from the command module to the surface of the moon and back
    LEM; lunar excursion module.
WordNet

lunar latitude

  • noun an imaginary line around the moon parallel to its equator
WordNet

Lunar method

  • the method of finding a ship's longitude by comparing the local time of taking (by means of a sextant or circle) a given lunar distance, with the Greenwich time corresponding to the same distance as ascertained from a nautical almanac, the difference of these times being the longitude.
Webster 1913

lunar module

  • noun a spacecraft that carries astronauts from the command module to the surface of the moon and back
    LEM; lunar excursion module.
WordNet

Lunar month

  • noun the period between successive new moons (29.531 days)
    lunation; synodic month; moon.
WordNet
  • . See 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.
Webster 1913

Lunar observation

  • an observation of a lunar distance by means of a sextant or circle, with the altitudes of the bodies, and the time, for the purpose of computing the longitude.
Webster 1913

Lunar tables

  • . (a) (Astron.) Tables of the moon's motions, arranged for computing the moon's true place at any time past or future . (b) (Navigation) Tables for correcting an observed lunar distance on account of refraction and parallax.
Webster 1913

lunar time period

  • noun there are usually two high and two low tides each day
    tide.
WordNet

Lunar year

  • noun a period of 12 lunar months
WordNet
  • the period of twelve lunar months, or 354 days, 8 hours, 48 minutes, and 34.38 seconds.
Webster 1913