sea_moss has definitions from the fields of biology,botany,zoology
[ noun ] (zoology) sessile aquatic animal forming mosslike colonies of small polyps each having a curved or circular ridge bearing tentacles; attach to stones or seaweed and reproduce by budding

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invertebrate Bryozoa

[ noun ] (biology,botany) any of various red algae having graceful rose to purple fronds (e.g. dulse or carrageen)

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