Related Words

American Plan: A hotel's meal plan that usually includes all three meals each day.

Plancks Constant: A proportionality constant that relates the energy carried by a photon to its frequency. Planck's constant has a value of 6.6262 × 10-34 J s.

Planaria: Small free-living fiatworms (Phylum Platyhelminthes) with bilateral symmetry and cephalization. The freshwater type is often used as an experimental organism.

Plan View: Drawing of a structure with the view from overhead, looking down.

Plane: (also 'swing plane') most easily visualized as the plane that the shaft of the club or the clubhead's arc describes during the swing

Planet: From the Greek planetes, wanderer; used astrologically to describe any heavenly body which when viewed from Earth appears to move, as distinguished from fixed stars.

Planetary Patterns: Used interchangeably with shaping. Sometimes equated with aspect patterns. See also shaping, Bowl, Bucket, Bundle, Locomotive, See-Saw, Splash, Splay.

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.

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 . . . View Full Definition

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 m . . . View Full Definition