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Transition Phase: An option issued by a firm to its shareholders to sell the firm one share of its common stock at a fixed price (the strike price) within a stated period (the time to maturity). The put right . . . View Full Definition

Polyphase Motor: Two or three-phase induction motors have their windings, one for each phase, evenly divided by the same number of electrical degrees. Reversal of the two-phase motor is accomplished by rever . . . View Full Definition

Prophase: 1) The first stage of mitosis during which chromosomes condense, the nuclear envelope disappears, and the centrioles divide and migrate to opposite ends of the cell. 2) The first stage of mi . . . View Full Definition

Quadrature Phase-Shift Keying (QPSK): A method of modulating digital signals using four phase states to code two digital bits per phase shift.

S Phase: That period of interphase when new DNA is synthesized as part of replication of the chromatin.

Phased Retirement: A work schedule arrangement that allows employees to gradually reduce their full-time hours over a period of time.

Phased Array Radar: A phased array radar uses an antenna that consists of an array of antenna elements along with signal processing that allows the antenna to be steered electronically.

Phase Shift: The fraction of a complete cycle elapsed as measured from a specified reference point and expressed as an angle. 2. Out of phase in an un-synchronized or un-correlated way.

Phase Transition: Iron phase transitions are at room temperature to 1,670°F (910°C) iron is body-center cubic, 1670°F (910°C) to 2535°F (1388°C) iron is face-center cubic and 2535°F (1390°C) the melting point . . . View Full Definition

Phase Transitions: When metals or metal alloys go from solid to liquid or the reverse, this is a