A thin, flat, circular object or plate.
An enlargement of the floral receptacle or ovary that secretes nectar or displays stamens, usually ring- or cup-shaped;
(In Cyperaceae) three-lobed structure occurring at the base of the nutlet in Scleria and Diplacrum;
The lip in orchids and sometimes the removable part of the rostellum projection (viscidium).
The face of any flat, circular body; the central part of a head of flowers—as in the sunflower.
A flat, round organ, often an enlarged part of an ovary that excretes nectar.
A rounded flattened structure, such as an ‘intervertebral disk or the optic disk.
In the intricate framework of the spinal column, there exists a circular structure known as an intervertebral disc, which serves the crucial purpose of safeguarding the vertebrae, nerves, and blood vessels. This remarkable formation consists of two distinct components: an outer layer comprising resilient fibrous tissue, while the inner core is composed of more elastic tissue, imparting flexibility and shock-absorbing properties.