hectograph

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun duplicator consisting of a gelatin plate from which ink can be taken to make a copy
verb copy on a duplicator

From hecto- (“hundred”) + -graph, so called because it would make about 100 copies.

“Still, there is no harm in providing for the improbable.” This was evidently Thorndyke’s view, and he certainly made ample provision for this most improbable contingency; for, having furnished himself with a drawing-board and a sheet of tracing-paper, he pinned the latter over the photograph on the board and proceeded, with a fine pen and hectograph ink, to make a careful and minute tracing of the intricate and bewildering hieroglyphic inscription on the seal. — The blue scarab, R. Austin (Richard Austin) Freeman

heliotype

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