Bible Dictionaries
Discoid

Webster's Dictionary

(1):

(a.) Having the form of a disk, as those univalve shells which have the whorls in one plane, so as to form a disk, as the pearly nautilus.

(2):

(n.) Anything having the form of a discus or disk; particularly, a discoid shell.

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