| one of a number of small tubular flowers composing the disk of certain composite plants. |
| disk flower n. Any of the tiny tubular flowers in the central portion of the flower head of certain composite plants, such as the daisy. |
| disk flower
Any of the tiny tubular flowers in the central portion of the capitulum or flower head of certain plants of the composite family (Asteraceae or Compositae). In many composite flowers, such as the daisy and sunflower, the disk flowers are surrounded by flattened ray flowers. |
