filopodium
/ˌfaɪləˈpoʊdiəm/
noun
- A thin, thread-like projection from a cell, used for movement or sensing the environment.
- Under the microscope, the cell extended a filopodium to explore its surroundings.
- The amoeba uses a filopodium to pull itself forward.
- Scientists observed the filopodium reaching out to touch another cell.