a small metal cap to protect the finger while sewing; can be used as a small container
Microsoft Computer Dictionary
n. A type element, similar to a daisy wheel, that bears a full character set, with each character on a separate type bar. As with a daisy wheel, the spokes, or type bars, radiate out from a central hub. On a thimble print element, however, each type bar is bent 90 degrees at its halfway point, so the type bars stick straight up with the type facing away from the hub. See also thimble printer. Compare daisy wheel, daisy-wheel printer.
