Sequoiene \Se*quoi"["e]ne\, n. (Chem.)
A hydrocarbon ({C13H10}) obtained in white fluorescent
crystals, in the distillation products of the needles of the
California ``big tree'' ({Sequoia gigantea}).
Fluorene \Flu`or*ene\, n. (Chem.)
A colorless, crystalline hydrocarbon, {C13H10} having a
beautiful violet fluorescence; whence its name. It occurs in
the higher boiling products of coal tar, and is obtained
artificially.