evolution meaning
EN
[ˌiːvəˈljuːʃən] [ˌiːvəˈluːʃən] [ˌɛvoˈluʃɪn] [ˌɛvoˈluʃʌn] [ˌɛvəˈluʃən] 
US WEvolution
- Evolution is change in heritable traits of biological populations over successive generations.
- After formation of Earth about 4.54 billion years ago, life originated (abiogenesis; panspermia) through common descent from a last universal ancestor that lived approximately 3.5–3.8 billion years ago.
- In the mid 19th century, Charles Darwin formulated the scientific theory of evolution by natural selection, published in his book On the Origin of Species (1859).
- In the early 20th century the modern evolutionary synthesis integrated classical genetics with Darwin's theory of evolution by natural selection through the discipline of population genetics.
FR évolution 
- NounPLevolutionsSUF-tion
- The process of accumulating change.
- Among other forms of change, the evolution of transportation has involved modification, diversification, convergence, divergence, hybridization, differentiation, and naturally, selection.
- A progression of change, often branching and diversifying in the process.
- The ongoing evolution of Lolita subculture fashion includes, among other things, the ballet style.
- (general) Gradual directional change especially one leading to a more advanced or complex form; growth; development.
- The evolution of the universe began with a bang.
- (biology) The change in the genetic composition of a population over successive generations.
- (chemistry) The act or an instance of giving off gas; emission.
- (mathematics) The extraction of a root from a quantity.
- (military) One of a series of ordered movements.
- (dance, sports) A turning movement of the body.
- The process of accumulating change.
- More Examples
- Used in the Middle of Sentence
- The continuing evolution in implant design has led to changes in morphology, materials, surface finishing and tribologic coupling.
- Outstanding issues like devolatilisation and istotopic evolution are tied to the disk evolution, however its lifetime, dynamics and thermodynamics are unknown.
- Your view on evolution is based on religion, not on scientific findings.
- Used in the Ending of Sentence
- Therefore, BcMF26a/b may be the result of neofunctionalization during evolution.
- Used in the Middle of Sentence
Definition of evolution in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Nouns
- en evolutionary
- en evolutions
- en evolutional
- en evolutionist
- en evolutionism
Source: Wiktionary
Grammatically, this word "evolution" is a noun, more specifically, a countable noun.