MYRIAPODA
Diplopoda, class Diplopoda, Myriapoda, class Myriapoda
(noun) arthropods having the body composed of numerous double somites each with two pairs of legs: millipedes
Source: WordNet® 3.1
Myr`i*ap"o*da, n. pl. Etym: [NL., fr. Gr. -poda.] (Zoöl.)
Definition: A class, or subclass, of arthropods, related to the hexapod
insects, from which they differ in having the body made up of
numerous similar segments, nearly all of which bear true jointed
legs. They have one pair of antennæ, three pairs of mouth organs, and
numerous trachaæ, similar to those of true insects. The larvæ, when
first hatched, often have but three pairs of legs. See Centiped,
Galleyworm, Milliped.
Note: The existing Myriapoda are divided into three orders:
Chilopoda, Chilognatha or Diplopoda, and Pauropoda (see these words
in the Vocabulary). Large fossil species (very different from any
living forms) are found in the Carboniferous formation.
Source: Webster’s Unabridged Dictionary 1913 Edition