Related Words

Lunar: From the Latin, luna, the Moon; descriptive of or relating to the Moon.

Lunar Eclipse: An eclipse of the moon occurs when the earth is in a direct line between the sun and the moon. The moon does not have any light of its own, instead, it reflects the sun's light. During a lun . . . View Full Definition

Lunar Time: Time based upon the rotation of the Earth relative to the Moon. See lunar day.

Lunar Interval: The difference in time between the transit of the Moon over the meridian of Greenwich and a local meridian. The average value of this interval, expressed in hours, is 0.069 L, where L is the . . . View Full Definition

Lunar Day: The time of the rotation of the Earth with respect to the Moon, or the interval between two successive upper transits of the Moon over the meridian of a place. The mean lunar day is approxim . . . View Full Definition

Sublunary: The area of the cosmos inside the orbit of the moon, including the earth. In medieval and Renaissance theology, this area was thought to be imperfect and subject to decay, death and mutabili . . . View Full Definition

Lunar Return Chart: A chart cast for the time the Moon returns to the exact degree, minute, and second it occupied at the moment of an individual's birth.

Lunar Tide: That part of the tide on the Earth due solely to the Moon as distinguished from that part due to the Sun.

Semilunar Valve: A valve between each ventricle of the heart and the artery connected to that ventricle.

Lunar Mansions: From Hindu astrology, a twenty-eight-fold division of a horoscope (twenty-eight mansions or houses) based upon the Moon's average daily motion. Critical degrees are derived from a similar di . . . View Full Definition