- A kind of cap or cover, or sometimes a broad ring, for the
end of the finger, used in sewing to protect the finger when pushing
the needle through the material. It is usually made of metal, and has
upon the outer surface numerous small pits to catch the head of the
needle. - Any thimble-shaped appendage or fixure. - A tubular piece, generally a strut, through which a bolt
or pin passes. - A fixed or movable ring, tube, or lining placed in a hole. - A tubular cone for expanding a flue; -- called ferrule in
England. - A ring of thin metal formed with a grooved circumference
so as to fit within an eye-spice, or the like, and protect it from
chafing.