evolutionrule

noun
UK /ˌiːvəˈluːʃən ruːl/
US /ˌɛvəˈluːʃən ruːl/

A rule that says living things change slowly over a very long time.

The evolutionrule explains why animals look different today than they did long ago.


OTHER MEANINGS

2. A guideline in a game or simulation that controls how things grow and change.

The programmer set an evolutionrule so the creatures got faster each round.

3. A principle describing how ideas or technology develop over time.

An evolutionrule in the app decides which features appear next.

4. A rule in a computer program that updates a system step by step.

Each evolutionrule changed the pattern on the screen a little.