ˌēgəˈgräpələ noun
Etymology: New Latin, from Greek aigagros + Latin pila ball, from pilus hair — more at pile
1. also ae·gag·ro·pile or egag·ro·pile ēˈgagrōˌpīl plural aegagropilas ˌēgəˈgräpələz or aegagropilae -ˌlē also aegagropiles or egagropiles ēˈgagrōpīlz : a ball of hair or a concretion found in the stomach of the goat and other ruminants
2. plural aegagropilas or aegagropilae : a ball-shaped mass of hairlike filaments formed by some algae (as certain species of the genus Cladophora )
3. capitalized , in some classifications : a genus of algae comprising all forms forming aegagropilas
• ae·ga·grop·i·lous |ēgə|gräpələs adjective