The Collaborative International Dictionary of English v.0.48:

Satyr \Sa"tyr\ (?; 277), n. [L. satyrus, Gr. ?: cf. F. satyre.]
   1. (Class. Myth.) A sylvan deity or demigod, represented as
      part man and part goat, and characterized by riotous
      merriment and lasciviousness.
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            Rough Satyrs danced; and Fauns, with cloven heel,
            From the glad sound would not be absent long.
                                                  --Milton.
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   2. (Zool.) Any one of many species of butterflies belonging
      to the family Nymphalidae. Their colors are commonly
      brown and gray, often with ocelli on the wings. Called
      also meadow browns.
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   3. (Zool.) The orang-outang.
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