What is the meaning of Amber?

A yellowish translucent resin resembling copal, found as a fossil in alluvial soils, with beds of lignite, or on the seashore in many places. It takes a fine polish, and is used for pipe mouthpieces, beads, etc., and as a basis for a fine varnish. By friction, it becomes strongly electric.

Source: Webster’s Revised Unabridged Dictionary (1913), via OPTED