Bible Dictionaries
Invagination

Webster's Dictionary

(1):

(n.) One of the methods by which the various germinal layers of the ovum are differentiated.

(2):

(n.) The condition of an invaginated organ or part.

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