Dictionary.net

A contrivance for producing manifold copies of writing or drawing. The writing or drawing is done with a style carrying a small wheel at the end which makes minute punctures in the paper, thus converting it into a stencil. Copies are transferred with an inked roller.

s[=i]'klo-st[=i]l, n. an apparatus for multiplying copies of a writing. [Formed from Gr. kyklos, circle, and STYLE.]

Apparatus printing copies of writing from stencil-plate cut by pen with small toothed wheel.