discoid
- s having a flat circular shape
- Hence the Pharmacopoeia commands that tablets of bichloride of mercury intended for antiseptic use be "of an angular shape, not discoid shape of many medicinal tablets, each .
- The galaxy that then took shape was a vast discoid system 200,000 light-years across.
- The flat discoid shape and narrow peripheral wing of medicago Orbicularis, native to the Mediterranean, suggest its adaptation to wind dispersal.