Rubber ducky Synonyms

Definitions for Rubber

(noun) an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products
(noun) any of various synthetic elastic materials whose properties resemble natural rubber
(noun) an eraser made of rubber (or of a synthetic material with properties similar to rubber); commonly mounted at one end of a pencil

RD is an abbreviation for Rubber Ducky

What does RD stand for?

RD stands for "Rubber Ducky"