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| a zodiacal constellation between Aries and Aquarius also called the Fishes |
| the figure of the moon in its first or last quarter, resembling a segment of a ring tapering to points at the ends |
gravitational wave
the transmission of variations in the gravitational field as waves. According to general relativity, the curvature of space-time is determined by the distribution of masses, while the motion of masses is determined by the curvature. In consequence, variations of the gravitational field should be transmitted from place to place as waves, just as variations of an electromagnetic field travel as waves. If the masses that are the source of a field change with time, they should radiate energy as waves of curvature of the field
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