def>The second full moon occurring in the same month; -- derived from the expression once in a blue moon; as, we had a blue moon on January 31, 1999, and another in March. [ PJC ]

once in a blue moon very rarely; -- from the observation that the moon rarely has a bluish tint. In 1980, the phrase blue moon was applied to the second full moon of any month, because this phenomenon is unusual. This new meaning for blue moon, a long time, used primarily in the phrase once in a blue moon, has become widely accepted. [ PJC ]

n. the time when the moon is fully illuminated.
Syn. -- full moon, full-of-the-moon. [ WordNet 1.5 ]

n. 1. The moon at the quarters, when half its disk appears illuminated. [ 1913 Webster ]

2. The shape of a half-moon; a crescent. [ 1913 Webster ]

See how in warlike muster they appear,
In rhombs, and wedges, and half-moons, and wings. Milton. [ 1913 Webster ]

3. (Fort.) An outwork composed of two faces, forming a salient angle whose gorge resembles a half-moon; -- now called a ravelin. [ 1913 Webster ]

4. (Zool.) A marine, sparoid, food fish of California (Caesiosoma Californiense). The body is ovate, blackish above, blue or gray below. Called also medialuna. [ 1913 Webster ]

n. 1. The first month after marriage. Addison. [ 1913 Webster ]

2. A vacation taken together by a newly married couple, usually including a trip away from home. [ PJC ]

3. Hence: [ fig. ] Any initial period of harmony after two or more people or organizations begin working together; as, the usual honeymoon for a newly elected president was cut short by resumption of partisan sniping over the budget. [ PJC ]

n. (Zool.) The Himalayan snow partridge. [ 1913 Webster ]

n. [ OE. mone, AS. mōna; akin to D. maan, OS. & OHG. māno, G. mond, Icel. māni, Dan. maane, Sw. måne, Goth. mēna, Lith. menů, L. mensis month, Gr. mh`nh moon, mh`n month, Skr. mās moon, month; prob. from a root meaning to measure (cf. Skr. mā to measure), from its serving to measure the time. √271. Cf. Mete to measure, Menses, Monday, Month. ] 1. The celestial orb which revolves round the earth; the satellite of the earth; a secondary planet, whose light, borrowed from the sun, is reflected to the earth, and serves to dispel the darkness of night. The diameter of the moon is 2, 160 miles, its mean distance from the earth is 240, 000 miles, and its mass is one eightieth that of the earth. See Lunar month, under Month. [ 1913 Webster ]

The crescent moon, the diadem of night. Cowper. [ 1913 Webster ]

2. A secondary planet, or satellite, revolving about any member of the solar system; as, the moons of Jupiter or Saturn. [ 1913 Webster ]

3. The time occupied by the moon in making one revolution in her orbit; a month; as, it's been many moons since I last visited Washington. Shak. [ 1913 Webster ]

4. (Fort.) A crescentlike outwork. See Half-moon. [ 1913 Webster ]

5. The deliberately exposed naked buttocks. [ slang ] [ PJC ]

Moon blindness. (a) (Far.) A kind of ophthalmia liable to recur at intervals of three or four weeks. (b) (Med.) Hemeralopia. --
Moon dial, a dial used to indicate time by moonlight. --
Moon face, a round face like a full moon. --
Moon madness, lunacy. [ Poetic ] --
Moon month, a lunar month. --
Moon trefoil (Bot.), a shrubby species of medic (Medicago arborea). See Medic. --
Moon year, a lunar year, consisting of lunar months, being sometimes twelve and sometimes thirteen. --
blue moon, see blue moon in the vocabulary. --
many moons, a long time. [ 1913 Webster ]

v. t. [ imp. & p. p. Mooned p. pr. & vb. n. Mooning. ] 1. To expose to the rays of the moon. [ 1913 Webster ]

If they have it to be exceeding white indeed, they seethe it yet once more, after it hath been thus sunned and mooned. Holland. [ 1913 Webster ]

2. To expose one's naked buttocks to (a person); -- a vulgar sign of contempt or disrespect, sometimes done as a prank. [ PJC ]

v. i. To act if moonstruck; to wander or gaze about in an abstracted manner. [ 1913 Webster ]

Elsley was mooning down the river by himself. C. Kingsley. [ 1913 Webster ]

n. A ray of light from the moon. [ 1913 Webster ]

a. Dim-sighted; purblind. [ 1913 Webster ]

n. A temporary blindness, or impairment of sight, said to be caused by sleeping in the moonlight; -- sometimes called nyctalopia. [ 1913 Webster ]

n. 1. A monster; a false conception; a mass of fleshy matter, generated in the uterus. [ 1913 Webster ]

2. A dolt; a stupid fellow. Dryden. [ 1913 Webster ]

a. Culminating, or coming to the meredian, at or about the same time with the moon; -- said of a star or stars, esp. of certain stars selected beforehand, and named in an ephemeris (as the Nautical Almanac), as suitable to be observed in connection with the moon at culmination, for determining terrestrial longitude. [ 1913 Webster ]

a. Of or resembling the moon; symbolized by the moon. “Sharpening in mooned horns.” “Mooned Ashtaroth.” Milton. [ 1913 Webster ]

n. One who abstractedly wanders or gazes about, as if moonstruck. [ R. ] Dickens. [ 1913 Webster ]

n. Conduct of one who moons. [ R. ] [ 1913 Webster ]

n. A little moon. [ R. ] Bp. Hall. [ 1913 Webster ]

n. 1. A eye affected by the moon; also, a disease in the eye of a horse. [ 1913 Webster ]

2. (Zool.) (a) Any species of American fresh-water fishes of the genus Hyodon, esp. Hyodon tergisus of the Great Lakes and adjacent waters. (b) The cisco. [ 1913 Webster ]

a. Having eyes affected by the moon; moonblind; dim-eyed; purblind. [ 1913 Webster ]

a. Having a round, full face. [ 1913 Webster ]

n. (Zool.) (a) An American marine fish (Vomer setipennis); -- called also bluntnosed shiner, horsefish, and sunfish. (b) A broad, thin, silvery marine fish (Selene vomer); -- called also lookdown, and silver moonfish. (c) The mola. See Sunfish, 1. [ 1913 Webster ]

n. (Bot.) (a) The oxeye daisy; -- called also moon daisy. (b) A kind of morning glory (Ipomoea Bona-nox) with large white flowers opening at night. [ 1913 Webster ]

n. (Bot.) Same as Mung. [ 1913 Webster ]

n. The bright reflection of the moon's light on an expanse of water. [ Poetic ] [ 1913 Webster ]

prop. n. [ from Sun Myun Moon, Korean evangelist and founder. ] A member of the Unification Church, founded by Sun Myun Moon. [ informal & contemptuous. ] [ PJC ]

n. (Zool.) The European goldcrest. [ 1913 Webster ]

a. Like the moon; variable. [ 1913 Webster ]

Being but a moonish youth. Shak. [ 1913 Webster ]

a. Being without a moon or moonlight. [ 1913 Webster ]

n. The light of the moon. -- a. Occurring during or by moonlight; characterized by moonlight. [ 1913 Webster ]

v. i. To work at a second job in addition to one's main occupation; -- often done at night, hence the word. [ PJC ]

n. One who follows an occupation or pastime by moonlight; as: (a) A moonshiner. (b) In Ireland, one of a band that engaged in agrarian outrages by night. (c) A serenader by moonlight. [ Local, U. S. ] (d) One who works at a second job in addition to his main occupation. [ Webster 1913 Suppl. ]

n. A simpleton; a lunatic. [ Obs. ] [ 1913 Webster ]

a. Illumined by the moon. “The moonlit sea.” Moore. “Moonlit dells.” Lowell. [ 1913 Webster ]

n. (Naut.) Same as Moonsail. [ 1913 Webster ]

n. The rising of the moon above the horizon; also, the time of its rising. [ 1913 Webster ]

adj. resembling the moon in shape.
Syn. -- moonlike. [ WordNet 1.5 ]

n. (Naut.) A sail sometimes carried in light winds, above a skysail. R. H. Dana, Jr. [ 1913 Webster ]

n. (Bot.) A climbing plant of the genus Menispermum; -- so called from the crescentlike form of the seeds. [ 1913 Webster ]

n. The descent of the moon below the horizon; also, the time when the moon sets. [ 1913 Webster ]

‖n. [ Hind. munishī, fr. Ar. munishī a writer, author, secretary, tutor. ] A Muslim professor or teacher of language. [ India ] [ 1913 Webster ]

n. 1. The light of the moon. [ 1913 Webster ]

2. Hence, show without substance or reality. [ 1913 Webster ]

3. A month. [ R. ] Shak. [ 1913 Webster ]

4. A preparation of eggs for food. [ Obs. ] [ 1913 Webster ]

5. Liquor smuggled or illicitly distilled, especially liquor distilled illegally in rural parts of the southern U. S. [ Dial. Eng., & Colloq. or Slang, U. S. ] [ Webster 1913 Suppl. ]

a. Moonlight. [ R. ] Clarendon. [ 1913 Webster ]

2. Empty; trivial; idle. [ Webster 1913 Suppl. ]

3. Designating, or pertaining to, illicit liquor; as, moonshine whisky. [ Dial. Eng., & Colloq. or Slang, U. S. ] [ Webster 1913 Suppl. ]

n. A person engaged in illicit distilling; -- so called because the work is largely done at night. [ Cant, U.S. ] [ 1913 Webster ]

n. Illicit distilling. [ Slang or Colloq., U. S. ] [ Webster 1913 Suppl. ]

a. Moonlight. [ Colloq. ] [ 1913 Webster ]

I went to see them in a moonshiny night. Addison. [ 1913 Webster ]

n. The action or event of sending a spacecraft to the moon; -- used of manned or unmanned missions. [ PJC ]

adj. splashed or covered patchily with moonlight; as, the moon-splashed world.
Syn. -- moon splashed. [ WordNet 1.5 +PJC ]

n. (Min.) A nearly pellucid variety of feldspar, showing pearly or opaline reflections from within. It is used as a gem. The best specimens come from Ceylon. [ 1913 Webster ]

a. See Moonstruck. [ 1913 Webster ]

a. 1. Mentally affected or deranged by the supposed influence of the moon; lunatic. [ 1913 Webster ]

2. Produced by the supposed influence of the moon. “Moonstruck madness.” Milton. [ 1913 Webster ]

3. Made sick by the supposed influence of the moon, as a human being; made unsuitable for food, as fishes, by such supposed influence. [ 1913 Webster ]