Doub'ler, n.
n. 1. One who, or that which, doubles.
Sense 2. An instrument for augmenting a very small quantity of electricity, so as to render it manifest by sparks or the electrometer.
n. 1. One who, or that which, doubles.
Sense 2. An instrument for augmenting a very small quantity of electricity, so as to render it manifest by sparks or the electrometer.