Source : Webster's Revised Unabridged Dictionary (1913)

Symphyla \Sym*phy"la\, n. pl. [NL., fr. Gr. sy`n with + ? a
   clan.] (Zo["o]l.)
   An order of small apterous insects having an elongated body,
   with three pairs of thoracic and about nine pairs of
   abdominal legs. They are, in many respects, intermediate
   between myriapods and true insects.

Source : WordNet®

Symphyla
     n : small class of minute arthropods; unimportant except for the
         garden centipede [syn: {class Symphyla}]