Bible Dictionaries
Thecosomata

Webster's Dictionary

(n. pl.) An order of Pteropoda comprising those species which have a shell. See Pteropoda.

Bibliography Information
Webster, Noah. Entry for 'Thecosomata'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​t/thecosomata.html. 1828.