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1. Passage from one condition or one part to another.
2. In polynucleic acid, replacement of a purine base by another purine base or a pyrimidine base by a different pyrimidine.
[L. transitio, fr. transeo, pp. -itus, to go across]
Farlex Partner Medical Dictionary © Farlex 2012
1. Change from one form, state, style, or place to another.
2. Genetics A point mutation in which a pyrimidine is replaced by another pyrimidine, or a purine is replaced by another purine.
3. A period during childbirth that precedes the expulsive phase of labor, characterized by strong uterine contractions and nearly complete cervical dilation.
intr.v. transi·tioned, transi·tioning, transi·tions
To make a transition.
tran·si′tion·al, tran·si′tion·ar′y (-zĭsh′ə-nĕr′ē) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
transitionAs used in UK medical education, the changeover from the pre-Modernising Medical Careers programme, which began on 1 August, 2007, and ends when the last trainee appointed under the old curriculum completes his or her training.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.