\Gal"ley-worm`\, n. [Prob. so called because the
numerous legs along the sides move rhythmically like the oars
of a galley.] (Zo["o]l.)
A chilognath myriapod of the genus {Iulus}, and allied
genera, having numerous short legs along the sides; a
milliped or ``thousand legs.'' See {Chilognatha}.