Chem. [f. ACE[TIC] + NAPHTHA + -YL = base + -ENE = derivative.] A compound substance of the Napthalene group, C12H8,=C10H6 < CH/CH, having two atoms of H less than Acenaphthene, whence it is derived.
1877. Watts, Fownes’ Chem., II. 582. Acenaphthylene is formed by passing the vapour of acenaphthene over gently heated lead oxide. It … crystallises in yellow tables … its picric acid compound forms yellow needles.
