Bible Dictionaries
Blastula

Webster's Dictionary

(n.) That stage in the development of the ovum in which the outer cells of the morula become more defined and form the blastoderm.

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