The Collaborative International Dictionary of English v.0.48:

Euterpe \Eu*ter"pe\ [L., fr. Gr. ?, fr. ? delightful; e'y^ well
   + ? to delight.]
   1. (Class. Myth.) The Muse who presided over music.
      [1913 Webster]

   2. (Bot.) A genus of palms, some species of which are elegant
      trees.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Euterpe
    n 1: a monocotyledonous genus of graceful palm trees in tropical
         America [syn: Euterpe, genus Euterpe]
    2: (Greek mythology) the Muse of music (or the flute)

Moby Thesaurus II by Grady Ward, 1.0:

42 Moby Thesaurus words for "Euterpe":
   Apollo, Apollo Musagetes, Bragi, Calliope, Castilian Spring, Clio,
   Erato, Helicon, Hippocrene, Melpomene, Muse, Orpheus, Parnassus,
   Pierian Spring, Pierides, Polyhymnia, Polymnia, Terpsichore,
   Thalia, afflatus, artistic imagination, conception,
   creative imagination, creative power, creative thought,
   esemplastic imagination, esemplastic power, fire of genius, genius,
   inspiration, muse, mythicization, mythification, mythopoeia, poesy,
   poetic genius, poetic imagination, sacred Nine,
   shaping imagination, the Muses, the Nine, tuneful Nine