| 1. | the earth's natural satellite, orbiting the earth at a mean distance of 238,857 miles (384,393 km) and having a diameter of 2160 miles (3476 km). |
| 2. | this body during a particular lunar month, or during a certain period of time, or at a certain point of time, regarded as a distinct object or entity. Compare full moon, half-moon, new moon, waning moon, waxing moon. |
| 3. | a lunar month, or, in general, a month. |
| 4. | any planetary satellite: the moons of Jupiter. |
| 5. | something shaped like an orb or a crescent. |
| 6. | moonlight. |
| 7. | a platyfish. |
| 8. | Slang. the buttocks, esp. when bared. |
| 9. | to act or wander abstractedly or listlessly: You've been mooning about all day. |
| 10. | to sentimentalize or remember nostalgically: He spent the day mooning about his lost love. |
| 11. | to gaze dreamily or sentimentally at something or someone: They sat there mooning into each other's eyes. |
| 12. | Slang. to expose one's buttocks suddenly and publicly as a prank or gesture of disrespect. |
| 13. | to spend (time) idly: to moon the afternoon away. |
| 14. | to illuminate by or align against the moon. |
| 15. | Slang. to expose one's buttocks to as a prank or gesture of disrespect. |
| 16. | blue moon, a very long period of time: Such a chance comes once in a blue moon. |
nē moon, Skt māsa moon, month
A natural satellite of a planet; an object that revolves around a planet. The planets vary in the number of their moons; for example, Mercury and Venus have none, the Earth has one, and Jupiter has seventeen or more. The planets' moons, like the planets themselves, shine by reflected light.
Note: The Earth's moon is about 240,000 miles away and is about 2,000 miles in diameter. The volume of the Earth is fifty times that of the moon; the mass of the Earth is about eighty times that of the moon. The moon has no atmosphere, and its gravity is about one-sixth that of the Earth.
moon
|
moon (m n) Pronunciation Key
(click for larger image in new window)
Our Living Language : The Earth's Moon is a desolate and quiet place. The only natural satellite of Earth, it consists almost entirely of rock, shows no signs of ongoing geologic activity, has no water, and has a very thin atmosphere consisting primarily of sodium. But our Moon does not present a typical case for planetary satellites. Over the last 50 years, over a hundred more moons have been discovered in the solar system, so that they now total 138, nearly all of them orbiting the larger planets Jupiter, Saturn, and Uranus (Mercury, Venus, and Pluto have no moons, while Mars has two). Because they are so far from the Sun, these moons are for the most part extremely cold. Io, one of Jupiter's 63 known moons, is an exception. It is the most geologically active body in the solar system, with almost constant volcanic activity and a surface covered by cooling lava. Some scientists think that another moon of Jupiter, Europa, may have liquid water capable of supporting life underneath a thick layer of surface ice. Titan, one of Saturn's moons, may also be capable of supporting primitive life in the ocean of liquid methane on its frigid surface. |