Dictionary

evolution

noun evo·lu·tion \ˌe-və-ˈlü-shən, ˌē-və-\

biology : a theory that the differences between modern plants and animals are because of changes that happened by a natural process over a very long time

: the process by which changes in plants and animals happen over time

: a process of slow change and development

Full Definition of EVOLUTION

1
:  one of a set of prescribed movements
2
a :  a process of change in a certain direction :  unfolding
b :  the action or an instance of forming and giving something off :  emission
c (1) :  a process of continuous change from a lower, simpler, or worse to a higher, more complex, or better state :  growth
(2) :  a process of gradual and relatively peaceful social, political, and economic advance
d :  something evolved
3
:  the process of working out or developing
4
a :  the historical development of a biological group (as a race or species) :  phylogeny
b :  a theory that the various types of animals and plants have their origin in other preexisting types and that the distinguishable differences are due to modifications in successive generations; also :  the process described by this theory
5
:  the extraction of a mathematical root
6
:  a process in which the whole universe is a progression of interrelated phenomena
evo·lu·tion·ari·ly \-shə-ˌner-ə-lē\ adverb
evo·lu·tion·ary \-shə-ˌner-ē\ adjective
evo·lu·tion·ism \-shə-ˌni-zəm\ noun
evo·lu·tion·ist \-sh(ə-)nist\ noun or adjective

Examples of EVOLUTION

  1. changes brought about by evolution
  2. an important step in the evolution of computers

Origin of EVOLUTION

Latin evolution-, evolutio unrolling, from evolvere
First Known Use: 1622

evolution

noun evo·lu·tion \ˌev-ə-ˈlü-shən also ˌē-və-\   (Medical Dictionary)

Medical Definition of EVOLUTION

1
:  a process of change in a certain direction <tumor evolution and progression—I. J. Fidler et al>
2
a :  the historical development of a biological group (as a race or species) :  phylogeny b :  a theory that the various types of animals and plants have their origin in other preexisting types and that the distinguishable differences are due to modifications in successive generations
evo·lu·tion·ari·ly \-shə-ˌner-ə-lē\ adverb
evo·lu·tion·ary \-shə-ˌner-ē\ adjective

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