Definition of sorus
soriplay \ˈsȯr-ˌī, -ˌē\
: a cluster of plant reproductive bodies: such asa : a cluster of sporangia on the underside of a fertile fern frondb : a mass of spores bursting through the epidermis of the host plant of a parasitic fungusc : a cluster of gemmae on the thallus of a lichen
Origin and Etymology of sorus
New Latin, from Greek sōros heap
First Known Use: 1832
Seen and Heard
What made you want to look up sorus? Please tell us where you read or heard it (including the quote, if possible).