(ˈ)nȯr+ noun
Etymology: nor- + bornane
: a bicyclic crystalline hydrocarbon C 7 H 12 that is the parent compound of various terpenoids (as camphor and fenchone) and that is obtained by adding ethylene to cyclopentadiene under heat and pressure and then hydrogenating; 1,4-methano-cyclohexane; bicyclo[2.2.1]heptane — called also norcamphane