The tumors appear as discoid prominences of varying size and number.

The radiate type is shown by discoid infusoria, by medusæ, by starfish and their allies.

Anterior above with a small, linear-oval, black, discoid spot.

Heads discoid, 15–many-flowered, in corymbose cymes; flowers perfect.

The tubular flowers compose the disk; and a head which has no ray-flowers is said to be discoid.

Heads discoid, 2–5-flowered, several together clustered into a compound pedunculate head; flowers perfect.

Heads rather many-flowered, discoid; flowers as in Pluchea, the central usually sterile.

They are smooth, rounded, or discoid cysts, varying in size from a split-pea to a Tangerine orange.

There are two lateral, discoid, brown chromatophores, each of which possesses a central amylum granule.