Science / Geology / Bedding Plane: A distinct surface of contact between two sedimentary rock layers.
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Plane Noun Synonyms: flat, even, level, smooth, plain, regular, unbroken, uninterrupted, uniform, horizontal
Plane Verb Synonyms: flat or level (surface)
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Technology / Motorcycle / Planetary Gear: A gear system that consists of one or more outer gears (or planet gears), rotating about a central gear (or sun gear). Planet gears are often mounted on a movable arm or carrier which also may rotate MORE
Science / Astrology / Planetary Hours: A system devised by ancient astrologers that assigned one of the seven planets then known to each hour of the day. The first hour of sunrise was ruled by the planetary day ruler (Sunday, Sun; Monday, MORE
Science / Astrology / Planetary Node: The point at which a planet's path intersects the ecliptic; declination, 0°. The term is usually reserved for nodes other than the Moon's Nodes. MORE
Science / Astrology / Planetary Patterns: Used interchangeably with shaping. Sometimes equated with aspect patterns. See also shaping, Bowl, Bucket, Bundle, Locomotive, See-Saw, Splash, Splay. MORE