A millipede is a small creature with a long narrow body and a lot of legs.
millipede in British English
or millepede (ˈmɪlɪˌpiːd) or milleped
noun
any terrestrial herbivorous arthropod of the class Diplopoda, having a cylindrical body made up of many segments, each of which bears two pairs of walking legs
See also myriapod
Word origin
C17: from Latin, from mille thousand + pēs foot
millipede in American English
(ˈmɪlɪˌpid)
noun
any of a class (Diplopoda) of many-legged arthropods with an elongated body having two pairs of walking legs on each segment
Word origin
< L millepeda < mille, thousand + pes (gen. pedis), foot