self-actingchange
nounUK /ˌselfˈæktɪŋtʃeɪndʒ/
US /ˌselfˈæktɪŋtʃeɪndʒ/
A change that happens by itself without anyone making it happen.
The plant's self-actingchange turned its leaves toward the sun.
OTHER MEANINGS
2. A change that a system makes to itself without outside help.
The robot's self-actingchange let it fix its own path.
3. A shift that occurs on its own over time.
The river's self-actingchange carved a new bend in the land.
4. An automatic adjustment made by a machine or program.
The app's self-actingchange updated the screen colors at night.