MONTH n.
eap 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…
REVOLUTION n.
point again, or to a point relatively the same; -- designated as the annual, anomalistic, nodical, sidereal, or tropical revolution, according as the point of return or completion has a fixed relation to the year, the anomaly, the nodes, the stars, or the tropics; as, the revolution of the earth about the sun; the revo…
YEAR n.
. See Leap year, in the Vocabulary. -- Lunar astronomical year, the period of 12 lunar synodical months, or 354 days, 8 hours, 48 minutes, 36 seconds. -- Lunisolar year. See under Lunisolar. -- Periodical year. See Anomalistic year, above. -- Platonic year, Sabbatical year. See under Platonic, and Sabbatical. -- S…