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Webster 1913 Edition
Galley-worm
Gal′ley-wormˊ
,Noun.
[Prob. so called because the numerous legs along the sides move rhythmically like the oars of a galley.]
(Zool.)
A chilognath myriapod of the genus
Iulus
, and allied genera, having numerous short legs along the sides; a milliped or “thousand legs.” See Chilognatha
.