
nonelectrical plating of metals and plastics to achieve uniform coatings by a process of controlled autocatalytic (self-continuing) reduction. ...
Found on
http://www.britannica.com/eb/a-z/e/19

A process in which metal ions in a dilute aqueous solution are plated out on a substrate by means of autocatalytic chemical reduction.
Found on
http://www.encyclo.co.uk/local/20742

A process for chemically depositing metallic material on a nonconductive surface. It is primarily used for metallising holes in a circuit board to prepare them for addition of electroplated metal.
Found on
http://www.encyclo.co.uk/local/20870

a technique of plating metal by chemical rather than electrical means, in which the piece to be plated is immersed in a reducing agent that, when catalyzed by certain materials, changes metal ions to metal that forms a deposit on the piece.
Found on
https://www.infoplease.com/dictionary/electroless-plating
No exact match found.