from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The time that elapses between successive new moons, averaging 29 days, 12 hours, 44 minutes; a lunar month.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a month of approximately 29.53 days, measured from a lunar phase until the return of that same phase. On average, the number of days between Full Moons is about 29.5306 days. The actual number of days may differ from the average number by more than a half day. From one Full Moon to the next, the number of days in one lunation can vary between 29.272 and 29.833 days.
- n. The irregular period from one new moon until the next.
from the GNU version of the Collaborative International Dictionary of English
- n. The period of a synodic revolution of the moon, or the time from one new moon to the next; varying in length, at different times, from about 291/4 to 295/6 days, the average length being 29 d., 12h., 44m., 2.9s.
from The Century Dictionary and Cyclopedia
- n. The period of a synodic revolution of the moon, or the time from one new moon to the next.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the period between successive new moons (29.531 days)
Middle English lunacioun, from Medieval Latin lūnātiō, lūnātiōn-, from Latin lūna; see lunar.(American Heritage® Dictionary of the English Language, Fourth Edition)
from lunar (Wiktionary)