The Collaborative International Dictionary of English v.0.48:

Bravura \Bra*vu"ra\, n. [It., (properly) bravery, spirit, from
   bravo. See Brave.] (Mus.)
   A florid, brilliant style of music, written for effect, to
   show the range and flexibility of a singer's voice, or the
   technical force and skill of a performer; virtuoso music.
   [1913 Webster]

   Aria di bravura[It.], a florid air demanding brilliant
      execution.
      [1913 Webster]

WordNet (r) 3.0 (2006):

bravura
    n 1: brilliant and showy technical skill; "in a final bravura
         the ballerina appeared to be floating in water"; "the music
         ends with a display of bravura"

Moby Thesaurus II by Grady Ward, 1.0:

235 Moby Thesaurus words for "bravura":
   Daedalian, ability, address, adept, adeptness, adroit, adroitness,
   adventuresomeness, adventurousness, airmanship, alto, apt, aria,
   aria buffa, aria cantabile, aria da capo, aria da chiesa,
   aria di bravura, aria di coloratura, aria fugata, aria parlante,
   arietta, arioso, artfulness, artisanship, artistic, artistry,
   audaciousness, audacity, authoritative, balls, baritone, bass,
   bel canto, blazon, bravado, brave, braw, brilliance, brilliancy,
   brilliant, cantabile, capability, capacity, chichi, choral,
   choral singing, choric, clean, clever, cleverness, coloratura,
   command, competence, control, coordinated, coordination, crack,
   crackerjack, craft, craftsmanship, croon, crooning, cunning, cute,
   daedal, daring, dash, dashing, deft, deftness, demonstration,
   derring-do, dexterity, dexterous, dexterousness, dextrous,
   dextrousness, diplomacy, diplomatic, display, dramatic, dramatics,
   dressy, eclat, efficiency, enterprise, etalage, excellent,
   exhibition, exhibitionism, exhibitionistic, expert, expertise,
   facility, false front, falsetto, fancy, fanfaronade, figure,
   finesse, flair, flashing, flashy, flaunt, flaunting, flourish,
   folk singing, foolhardiness, frilly, frothy, gallant, gay,
   glittering, good, goodish, grace, graceful, grip, handiness, handy,
   heroic, histrionics, horsemanship, hum, humming, hymnal, ingenious,
   ingeniousness, ingenuity, intonation, jaunty, jazzy, know-how,
   liturgical, lyric, lyricism, magisterial, manifestation,
   marksmanship, masterful, masterly, mastership, mastery, neat,
   no mean, operatic, operatic singing, overboldness, pageant,
   pageantry, parade, politic, practical ability, professional,
   proficiency, proficient, prowess, psalmic, psalmodial, psalmodic,
   quick, quickness, quite some, rakish, readiness, ready, recitative,
   resource, resourceful, resourcefulness, sacred, savoir-faire,
   savvy, scat, scat singing, seamanship, sham, show, showing-off,
   showy, singing, skill, skillful, skillfulness, slick, snazzy,
   sol-fa, sol-fa exercise, solfeggio, solmization, solo, some, song,
   soprano, spectacle, splash, splashy, splurge, splurgy, sporty,
   staginess, statesmanlike, style, stylish, tact, tactful,
   tactfulness, technical brilliance, technical mastery,
   technical skill, technique, tenor, the compleat, the complete,
   theatrics, timing, tonic sol-fa, treble, vaunt, venturesomeness,
   venturousness, virtuosity, virtuoso, vocal, vocal music,
   vocalization, warbling, well-done, wit, wizardry, workmanlike,
   workmanship, yodel, yodeling