Bible Dictionaries
Monocardian

Webster's Dictionary

(1):

(a.) Having a single heart, as fishes and amphibians.

(2):

(n.) An animal having a single heart.

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