Real Dictionary

drypoint in British English
a fine, hard needle for engraving lines on a copper plate without using acid
noun: a technique of engraving, esp. on copper, in which a sharp-pointed needle is used for producing furrows having a burr that is often retained in order to produce a print characterized by soft, velvety black lines
noun: a technique of intaglio engraving with a hard steel needle, without acid, on a copper plate