Bible Dictionaries
Scaleback

Webster's Dictionary

(n.) Any one of numerous species of marine annelids of the family Polynoidae, and allies, which have two rows of scales, or elytra, along the back. See Illust. under Chaetopoda.

Bibliography Information
Webster, Noah. Entry for 'Scaleback'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​s/scaleback.html. 1828.