Dĭs'coid1, n.
n. [See infra.] Any thing having the form of a discus or disk, especially a univalve shell of which the whorls are disposed vertically.
2 entries under this word
Discoid
Dĭs'coid or Dis-coid'al2, a.
a. [Gr. δισκυειδής, from δίσκος, a round plate, quoit, and εἶδος, form, shape; Fr. discoïde. See DISK.] Having the form of a disk;—particularly applied to those univalve shells which have the air-whorls disposed vertically on the same plane, so as to form a disk, as the pearly nautilus.
Discoid flowers, compound flowers, consisting of tubular florets only, as the tansy.
