The Collaborative International Dictionary of English v.0.48:

Scarus \Sca"rus\, n. [L. See Scar a kind of fish.] (Zool.)
   A Mediterranean food fish (Sparisoma scarus) of excellent
   quality and highly valued by the Romans; -- called also
   parrot fish.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Parrot \Par"rot\ (p[a^]r"r[u^]t), n. [Prob. fr. F. Pierrot, dim.
   of Pierre Peter. F. pierrot is also the name of the sparrow.
   Cf. Paroquet, Petrel, Petrify.]
   1. (Zool.) In a general sense, any bird of the order
      Psittaci.
      [1913 Webster]

   2. (Zool.) Any species of Psittacus, Chrysotis, Pionus,
      and other genera of the family Psittacid[ae], as
      distinguished from the parrakeets, macaws, and lories.
      They have a short rounded or even tail, and often a naked
      space on the cheeks. The gray parrot, or jako (Psittacus
      erithacus) of Africa (see Jako), and the species of
      Amazon, or green, parrots (Chrysotis) of America, are
      examples. Many species, as cage birds, readily learn to
      imitate sounds, and to repeat words and phrases.
      [1913 Webster]

   Carolina parrot (Zool.), the Carolina parrakeet. See
      Parrakeet.

   Night parrot, or Owl parrot. (Zool.) See Kakapo.

   Parrot coal, cannel coal; -- so called from the crackling
      and chattering sound it makes in burning. [Eng. & Scot.]


   Parrot green. (Chem.) See Scheele's green, under Green,
      n.

   Parrot weed (Bot.), a suffrutescent plant (Bocconia
      frutescens) of the Poppy family, native of the warmer
      parts of America. It has very large, sinuate, pinnatifid
      leaves, and small, panicled, apetalous flowers.

   Parrot wrasse, Parrot fish (Zool.), any fish of the genus
      Scarus. One species (Scarus Cretensis), found in the
      Mediterranean, is esteemed by epicures, and was highly
      prized by the ancient Greeks and Romans.
      [1913 Webster]