noun
- the stalks of individual leaflets in a compound leaf
Usage: botanical
Examples
- The botanist examined the petiolules connecting each leaflet to the main stem.
- In compound leaves, petiolules allow individual leaflets to move independently.
- The rose leaf showed distinct petiolules for each of its five leaflets.
- Students learned to identify petiolules when studying plant anatomy.
- The petiolules were clearly visible under the microscope.
- Each leaflet was attached by its own petiolule to the rachis.