\Lu"cu*lent\, a. [L. luculentus, from lux, lucis, light.] 1. Lucid; clear; transparent. --Thomson. 2. Clear; evident; luminous. `` Most luculent testimonies.'' --Hooker. 3. Bright; shining in beauty. [Obs.] Most debonair and luculent lady. --B. Jonson.