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Definition of Sorus
1. Noun. A spore-producing structure in certain lichens and fungi.
Generic synonyms: Reproductive Structure
2. Noun. Cluster of sporangia usually on underside of a fern frond.
Definition of Sorus
1. n. One of the fruit dots, or small clusters of sporangia, on the back of the fronds of ferns.
2. n. In parasitic fungi, any mass of spores bursting through the epidermis of a host plant.
Definition of Sorus
1. a cluster of plant reproductive bodies [n -RI]
Medical Definition of Sorus
1. A group of sporangia or spore cases, for example on the underside of fern leaves. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)