Phase or phases may refer to:

Science

*State of matter, or phase, one of the distinct forms in which matter can exist *Phase (matter), a region of space throughout which all physical properties are essentially uniform *Phase space, a mathematical space in which each possible state of a physical system is represented by a point — this equilibrium point is also referred to as a "microscopic state" **Phase space formulation, a formulation of quantum mechanics in phase space *Phase (waves), the position of a point in time (an instant) on a waveform cycle **Instantaneous phase, generalization for both cyclic and non-cyclic phenomena *AC phase, the phase offset between alternating current electric power in multiple conducting wires **Single-phase electric power, distribution of AC electric power in a system where the voltages of the supply vary in unison **Three-phase electric power, a common method of AC electric power generation, transmission, and distribution *Phase problem, the loss of information (the phase) from a physical measurement *Phase factor, a complex scalar used in quantum mechanics *in continuous Fourier transform, the angle of a complex coefficient representing the phase of one sinusoidal component

Other sciences

*Archaeological phase, a discrete period of occupation at an archaeological site *Color phase, in biology, a group of individuals within a species with a particular coloration *Gametic phase, in genetics, the relationship between alleles at two chromosomal loci *Lunar phase, the appearance of the Moon as viewed from the Earth *Planetary phase, the appearance of the illuminated section of a planet *Phase separation, in physical chemistry, the separation of a liquid mixture into two immiscible liquids above and below a meniscus *Phase (syntax), in linguistics, a cyclic domain (proposed by Noam Chomsky) *In biology, a part of the cell cycle in which cells divide (mitosis) and/or reproduce (meiosis)

Music

*Phase (band), a Greek alternative rock band *Phases (band), an indie pop American band, formerly known as JJAMZ *Phase (album), ''Phase'' (album), a debut studio album by an English singer Jack Garratt *Phases (The Who album), ''Phases'' (The Who album), a box set of albums by The Who *Phases (I See Stars album), ''Phases'' (I See Stars album), 2015 *Phase (Mildlife album), ''Phase'' (Mildlife album), a 2017 album by Mildlife *Phases (Angel Olsen album), ''Phases'' (Angel Olsen album), 2017 *"Phases", a song by English alternative rock band Keane from their 2019 album ''Cause and Effect (Keane album), Cause and Effect''

Other entertainment

*Phases (Buffy the Vampire Slayer), "Phases" (''Buffy the Vampire Slayer''), a 1998 episode of the TV series ''Buffy the Vampire Slayer'' *Phases (.hack), fictional monsters in the .hack franchise *Phase, an incarnation of the DC Comics character usually known as Phantom Girl

Other uses

*Phase 10, a card game created by Fundex Games *Phase (video game), ''Phase'' (video game), a 2007 music game for the iPod developed by Harmonix Music Systems *Phase (combat), usually a period of combat within a larger military operation *A musical composition using Steve Reich's phasing technique

Science

Other sciences

Music

Other entertainment

Other uses

See also