The Collaborative International Dictionary of English v.0.48:

Nomad \Nom"ad\, n. [L. nomas, -adis, Gr. ?, ?, pasturing,
   roaming without fixed home, fr. ? a pasture, allotted abode,
   fr. ? to distribute, allot, drive to pasture; prob. akin to
   AS. niman to take, and E. nimble: cf. F. nomade. Cf.
   Astronomy, Economy, Nimble, Nemesis, Numb,
   Number.]
   One of a race or tribe that has no fixed location, but
   wanders from place to place in search of pasture or game.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Nomad \Nom"ad\, a.
   Roving; nomadic.
   [1913 Webster]

WordNet (r) 3.0 (2006):

nomad
    n 1: a member of a people who have no permanent home but move
         about according to the seasons

Moby Thesaurus II by Grady Ward, 1.0:

41 Moby Thesaurus words for "nomad":
   Arab, Bedouin, Bohemian, Romany, Zigeuner, circumforaneous,
   discursive, divagatory, drifting, errant, flitting, floating,
   footloose, footloose and fancy-free, fugitive, gadding, gypsy,
   gypsy-like, gypsyish, landloping, meandering, migrational,
   migratory, nomadic, rambling, ranging, roaming, roving, shifting,
   straggling, straying, strolling, traipsing, transient, transitory,
   transmigratory, tzigane, vagabond, vagrant, wandering, zingaro



The Free On-line Dictionary of Computing (30 December 2018):

NOMAD

    A database language.

   Version: NOMAD2 from Must Software International.

   ["NOMAD Reference Manual", Form 1004, National CSS Inc, Dec
   1976].

   (1995-04-01)