Definition
In a bicyclic system, the carbon atoms where the rings are fused together.
Explanation
Bridgeheads are simply another systemic way of showing a compound.
Take Norbornane for example:
Bridgeheads
In one sentence
In a bicyclic system, the carbon atoms where the rings are fused together.
Terms used on this page
Every one of these links to a full definition with an example.