Transition or transitional may refer to:

Mathematics, science, and technology

Biology Transition (genetics), a point mutation that changes a purine nucleotide to another purine (A ↔ G) or a pyrimidine nucleotide to another pyrimidine (C ↔ T) Transitional fossil, any fossilized remains of a lifeform that exhibits the characteristics of two distinct taxonomic groups A phase during childbirth contractions during which the cervix completes its dilation

Gender and sex Gender transition, the process of changing one's gender presentation to accord with one's internal sense of one's gender – the idea of what it means to be a man, woman, both, or neither Gender-affirming care, the physical aspect of a gender transition Gender-affirming surgery, surgical intervention a part of medical gender affirmation

Physics Phase transition, a transformation of the state of matter; for example, the change between a solid and a liquid, between liquid and gas or between gas and plasma Quantum phase transition, a phase transformation between different quantum phases Quantum Hall transitions, a quantum phase transition that occurred because of the quantum Hall effect Transition radiation, contrasts to the Cherenkov radiation Atomic electron transition, the transition of an electron from one quantum state to another within an atom Beta decay transition, nuclear beta decay determined by changes in spin Laminar–turbulent transition, the process of a laminar fluid flow becoming turbulent Glass transition, the reversible transition in amorphous materials Lambda transition, universality class in condensed matter physics

Chemistry Transition metal, either an element whose atom has an incomplete d sub-shell, or any element in the d-block of the periodic table Transition state, of a chemical reaction is a particular configuration along the reaction coordinate SRM transition, the precursor and product ion pair in selected reaction monitoring (SRM) in analytical chemistry

Computing A movement between states of an abstract computer, described by a transition system A phase of the rational unified process A paradigm describing changes of communication mechanisms; see Transition (computer science)

Other uses in technology Terrafugia Transition, a flying car (or drivable airplane) Transitions, a brand of photochromic eyeglass lens and sponsor of the PGA Tour Transitions Championship "Shifting gears" on a railroad locomotive; see Diesel locomotive#Propulsion system operation

Government and politics

Democratic transition, change to a democratic regime Peaceful transition of power a norm or practice in democratic governments, of transitions of power between different political parties Social change, often synonymous with social transition Spanish transition to democracy, known as "the Transition" Transition management (governance) United States presidential transition, the transfer of federal executive branch power from the incumbent President of the United States to the president-elect

Arts and entertainment

Literature Transition (fiction), a narrative element or general aspects of writing style that signal changes in a story Transition (linguistics), a certain word, expression, or other device that gives text or speech greater cohesion by making it more explicit

Works Transition (literary journal), an experimental literary journal that featured surrealist, expressionist, and Dada art and artists Transition, a novel by Iain Banks Transition, a novel by Vonda N. McIntyre 1990 Transition Magazine, a political and literary journal published from 1961 to 1976 on the African continent, and revived in 1991 in the United States Transitions (novel series), a novel series by R A Salvatore Transitions Online, Czech publisher of the Transitions news journal Transitions: A Mother's Journey, a graphic novel by Élodie Durand

Film, radio, and television Film transition, a method of juxtaposing two scenes, including: Wipe (transition), a type of film transition where one shot replaces another by travelling from one side of the frame to another or with a special shape Dissolve (filmmaking), a gradual transition from one image to another "Transition" (The West Wing), season 7 episode 19 of US television series The West Wing Transitions (film), the world's first IMAX film in 3D, 1986 Transition (1989 film), a film by the Iranian director Kamal Tabrizi Transition (2023 film), a documentary film Transitions (radio show), a weekly two-hour radio show on Kiss 100 in the UK "Transitioning" (Glee), an episode of US television series Glee "Transitions" (Law & Order: Special Victims Unit episode), season 10 episode 14 of US television series Law & Order: Special Victims Unit "Transitions" (The Wire), an episode of US television series The Wire "Transitions", an episode of US television series Without a Trace

Music Transition (music), the middle passage of a piece of music Transition (band), English indie rock band

Albums Transition (John Coltrane album), 1970 Transition (The First Edition album), 1971 Transition (Buddy Rich Lionel Hampton album), 1974 Transition (John Miles album), 1985 Transition (Fly to the Sky album), 2006 Transition (Ryan Leslie album), 2009 Transition (Chipmunk album), 2011 Transition (Steve Lukather album), 2013 Transitions (John Digweed album), 2006 Transitions (Aghora album), 2006 Transitions (Westbound Train album), 2006 Transitions (EP), 2010 by Canadian post-hardcore band Silverstein

Songs "Transition", by Pestilence from Obsideo, 2013 "Transition", by Theatre Of Tragedy from Forever Is the World, 2009 "The Transition", by Hawthorne Heights from The Silence in Black and White, 2004 "Transitions", by Beastie Boys from Ill Communication, 1994 "Transitions", by Zao from The Crimson Corridor, 2021

Other arts Transitional Style, of furniture and interior design

Sport Transition (grappling), in grappling is a move from one grappling hold or grappling position to another Transitions Championship, a men's professional golf tournament on the PGA Tour

Other uses Transition Glacier, a glacier on the east coast of Alexander Island Transitional care, wherein a patient changes health care provider

See also

The Transition (disambiguation) Transition function (disambiguation) Change (disambiguation), broadly synonymous Fade (disambiguation) Gradient (disambiguation) Impermanence, also known as the philosophical problem of change