n. Any of the tiny tubular flowers in the central portion of the flower head of certain composite plants, such as a daisy. Also called disk floret.
disk′ flow`er
n. any of the tiny, closely clustered tubular florets that make up the disk of a composite flower. Also called disk′ floret`. Compare ray flower. [1865–70]
disk flower
disk flower
[′disk ‚flau̇·ər] (botany) One of the flowers on the disk of a composite plant.