Definition for Graphene
From Biology Forums Dictionary
Graphene is an allotrope of carbon. In this material, carbon atoms are arranged in a regular hexagonal pattern. Graphene can be described as a one-atom thick layer of the mineral graphite, (many layers of graphene stacked together effectively form crystalline flake graphite). Amongst its other well-publicised superlative properties, it is very light, with a 1-square-meter sheet weighing only 0.77 milligrams.