Discoid

Definition:

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

Compare discoid with other words:

discoid vs. discord

discoid vs. disk

disc vs. discoid

discoid vs. round