Definition of "pluteus" [plu•te•us]

• A low screen between columns, especially one that surrounds the choir of a church (noun)
• The free-swimming larvae of echinoderms. (noun)

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• "Growing from the side of a stump, the stem of the fawn-colored pluteus bends upwards to the light."
• "It was enclosed in a marble _pluteus_ by Cardinal Orsini, in 1438."
• "In an analogous manner the deciduous, pluteus-condition of the young Echinoderm perishes and is absorbed by the growing body of the permanent adult stage."