a. [f. L. lūmin-, lūmen light + -ESCENT.] a. Emitting light, or having the property of emitting light, otherwise than as a result of incandescence. b. Pertaining to luminescence.

1

1889.  [trans. E. Weidemann in] Philos. Mag., Ser. V. XXVIII. 155. Luminescent light is in a high degree dependent in colour and intensity upon the mode of production.

2

1896.  S. P. Thompson, in Jrnl. Oxf. Univ. Junior Scientific Club, II. No. 40. 64. The colour emitted by the luminescent body.

3