The Collaborative International Dictionary
Discoidal
Discoidal \Dis*coid"al\, a. [Cf. F. disco["i]dal.] Disk-shaped; discoid.
Wiktionary
discoidal
a. Having the flat, circular shape of a disc or a quoit
WordNet
Usage examples of "discoidal".
Droog held the discoidal nucleus firmly on the anvil, and gauging the distance and point of impact with precision, he struck the small dent he had made, with the bone hammer.