noun so·rus \ˈsȯr-əs\

Definition of sorus



play \ˈsȯr-ˌī, -ˌē\
  1. :  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

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