A type of harrow.
A disc - either a CD-ROM, an audio CD, a DVD or similar removable storage medium.
A ring- or cup-shaped enlargement of the flower receptacle or ovary that bears nectar or, less commonly, the stamens.
Something resembling a disk.
A thin, flat, circular plate or similar object.
An intervertebral disc
To harrow.
To move towards, or operate at, zero blade pitch, orienting the propeller blades face-on to the oncoming airstream and maximising the drag generated by the propeller.
A scute.
The kneecap.
One of the two lower valves of the operculum of a barnacle.
An oblong shield made of boards or wickerwork covered with leather, with sometimes an iron rim; carried chiefly by the heavily armed infantry of the Roman army.
A shield-like protection, such as the scutum protecting the back of a hard tick (cf. alloscutum, conscutum)