A nonconductor of electricity, as amber, glass, resin, etc., employed to excite or accumulate electricity.
Webster 1828 Edition
Electric
ELEC'TRIC
,
Noun.
Any body or substance capable of exhibiting electricity by means of friction or otherwise,and of resisting the passage of it from one body to another. Hence an electric is called a non-conductor, an electric per se. Such are amber, glass, rosin, wax, gum-lac, sulphur, &c.