a theory that the various existing types of animals and plants are derived from preexisting types by natural selection
the historical development of a biological group, e.g. a race, species, or higher category
a theory that the various existing types of animals and plants are derived from preexisting types and that the distinguishable differences are due to natural selection
a process of change and development, esp from a lower or simpler state to a higher or more complex state
a process of gradual and relatively peaceful social, political, economic, etc advance
in chemistry, the action or an instance of forming and giving something off; emission
a set of prescribed movements, e.g. in a dance
a set of planned manoeuvres, e.g. in a military exercise