ergotropism
/ˌɜrɡoʊˈtroʊpɪzəm/
noun
- The tendency of a living organism to grow or move toward a source of work or energy, such as light or heat.
- The ergotropism of certain bacteria helps them move toward warm environments where they can thrive.
- Scientists studied the ergotropism of plant roots to understand how they seek out nutrients.
- The sunflower's ergotropism makes it turn toward the sun throughout the day.