[1] : The Collaborative International Dictionary of English v.0.48

sonorous \sono"rous\, a. l. sonorus, fr. sonor, -oris, a
   sound, akin to sonus a sound. see sound.
   1. giving sound when struck; resonant; as, sonorous metals.
      1913 webster

   2. loud-sounding; giving a clear or loud sound; as, a
      sonorous voice.
      1913 webster

   3. yielding sound; characterized by sound; vocal; sonant; as,
      the vowels are sonorous.
      1913 webster

   4. impressive in sound; high-sounding.
      1913 webster

            the italian opera, amidst all the meanness and
            familiarty of the thoughts, has something beautiful
            and sonorous in the expression.       --addison.
      1913 webster

            there is nothing of the artificial johnsonian
            balance in his style. it is as often marked by a
            pregnant brevity as by a sonorous amplitude. --e.
                                                  everett.
      1913 webster

   5. med. sonant; vibrant; hence, of sounds produced in a
      cavity, deep-toned; as, sonorous rhonchi.
      1913 webster

   sonorous figures physics, figures formed by the
      vibrations of a substance capable of emitting a musical
      tone, as when the bow of a violin is drawn along the edge
      of a piece of glass or metal on which sand is strewed, and
      the sand arranges itself in figures according to the
      musical tone. called also acoustic figures.

   sonorous tumor med., a tumor which emits a clear,
      resonant sound on percussion.
      1913 webster -- sono"rously, adv. --
      sono"rousness, n.
      1913 webster
see also:
sound sonorous figures acoustic figures sonorous tumor sono"rously sono"rousness 

[2] : WordNet (r) 2.0

sonorous
     adj : full and loud and deep; "heavy sounds"; "a herald chosen for
           his sonorous voice" syn: heavy
see also:
heavy 

[3] : Moby Thesaurus II by Grady Ward, 1.0

143 moby thesaurus words for "sonorous":
   gongoresque, johnsonian, achingly sweet, affected, agreeable,
   agreeable-sounding, appealing, ariose, arioso, aureate, bedizened,
   big-sounding, bombastic, booming, canorous, cantabile, catchy,
   clangorous, clattery, consonant, convoluted, deafening,
   declamatory, droning, dulcet, ear-piercing, ear-rending,
   ear-splitting, earthshaking, elevated, euphonic, euphonious,
   euphonous, euphuistic, fine-toned, flamboyant, flaming, flashy,
   flaunting, flowery, forte, fortissimo, full, fulsome, garish,
   gaudy, golden, golden-tongued, golden-voiced, grandiloquent,
   grandiose, grandisonant, high-flowing, high-flown, high-flying,
   high-sounding, highfalutin, honeyed, inkhorn, labyrinthine,
   lexiphanic, lofty, loud, loud-sounding, loudish, lurid,
   magniloquent, melic, mellifluent, mellifluous, mellisonant, mellow,
   melodic, melodious, meretricious, monotone, monotonic,
   music-flowing, music-like, musical, noiseful, oratorical, orotund,
   ostentatious, overblown, overdone, overelaborate, overinvolved,
   overwrought, pealing, pedantic, piercing, plangent, pleasant,
   pleasant-sounding, pompous, pretentious, pulsing, rackety,
   resonant, resonating, resounding, rhetorical, rich, ringing,
   rolling, rotund, round, sensational, sensationalistic, sententious,
   showy, silver-toned, silver-tongued, silver-voiced, silvery,
   singable, songful, songlike, soniferous, sounded, sounding,
   stentoraphonic, stentorian, stentorious, stilted, sweet,
   sweet-flowing, sweet-sounding, tall, throbbing, thunderous, tonal,
   toneless, tonitruant, tonitruous, tortuous, tunable, tuneful,
   uproarious, vibrant, vibrating, window-rattling

Sonorous >> S Words
Sonorous, definition of term: Sonorous
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