exogen
/ˈɛksədʒən/
noun
- A plant that grows by adding layers on the outside of its stem, such as most trees and shrubs.
- Exogens typically have a distinct bark layer formed by external growth.
- The botanist explained how exogens differ from endogens in growth patterns.
- Oaks and pines are exogens, adding new wood each year.
Antonyms