• Webster's Revised Unabridged Dictionary
    • n Galley-worm (Zoöl) A chilognath myriapod of the genus Iulus, and allied genera, having numerous short legs along the sides; a milliped or “thousand legs.” See Chilognatha.
    • ***
Century Dictionary and Cyclopedia
    • n galley-worm See gally-worm.
    • ***


Webster's Revised Unabridged Dictionary
Prob. so called because the numerous legs along the sides move rhythmically like the oars of a galley


In literature:

The galleys are sheathed with it, for the ship-worm bores into it but little.
"The Philippine Islands, 1493-1898: Volume XVIII, 1617-1620" by Various