Home›Browse›F›fungal filamentfungal filamentOur editors are putting together more complete content — check back in about 20 minutesfungal filamentfungal filament — nounnoun1. a long, thin thread-like structure that forms the body of a fungus1.nounDefinitiona long, thin thread-like structure that forms the body of a fungusExampleThe fungal filament spreads through the soil to absorb nutrients.