periphytic

periphyton

[puh-rif-i-ton]
noun Ecology.
the community of tiny organisms, as protozoans, hydras, insect larvae, and snails, that lives on the surfaces of rooted aquatic plants.

Origin:
1940–45; probably peri- + Greek phŷton plant, -phyte, on the model of plankton

periphytic [per-uh-fit-ik] , adjective
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World English Dictionary
periphyton (pəˈrɪfɪˌtɒn)
 
n
aquatic organisms, such as certain algae, that live attached to rocks or other surfaces
 
[C20: from Greek, from peri- + phutos, from phuein to grow]

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