The Collaborative International Dictionary of English v.0.48:

Cavalcade \Cav"al*cade`\, n. [F. cavalcade, fr. It. cavalcata,
   fr. cavalcare to go on horseback, fr. LL. caballicare, fr. L.
   caballus an inferior horse, Gr. ?. Cf. Cavalier,
   Cavalry.]
   A procession of persons on horseback; a formal, pompous march
   of horsemen by way of parade.
   [1913 Webster]

         He brought back war-worn cavalcade to the city.
                                                  --Prescott.
   [1913 Webster] Cavalero

WordNet (r) 3.0 (2006):

cavalcade
    n 1: a procession of people traveling on horseback

Moby Thesaurus II by Grady Ward, 1.0:

20 Moby Thesaurus words for "cavalcade":
   caravan, column, cortege, dress parade, flyover, funeral, line,
   march past, motorcade, mule train, pack train, parade, pomp,
   procession, promenade, review, skimmington, stream, string,
   train