v. t. To elaborate, perfect, or compose, by night study or by laborious endeavor. [ 1913 Webster ]

v. i. [ imp. & p. p. Lucubrated p. pr. & vb. n. Lucubrated ] [ L. lucubratus, p. p. of lucubrare to work by lamplight, fr. lux light. See Light, n. ] To study by candlelight or a lamp; to study by night. [ 1913 Webster ]

n. [ l. lucubratio;cf. F. lucubration. ] 1. The act of lucubrating, or studying by candlelight; nocturnal study; meditation. [ 1913 Webster ]

After long lucubration I have hit upon such an expedient. Goldsmith. [ 1913 Webster ]

2. That which is composed by night; that which is produced by meditation in retirement; hence (loosely) any literary composition. [ 1913 Webster ]

Thy lucubrations have been perused by several of our friends. Tatler. [ 1913 Webster ]

n. One who studies by night; also, one who produces lucubrations. [ 1913 Webster ]

a. [ L. lucubratorius. ] Composed by candlelight, or by night; of or pertaining to night studies; laborious or painstaking. Pope. [ 1913 Webster ]

n. [ Dim. fr. L. lux, lucis, light. ] (Astron.) A spot or fleck on the sun brighter than the surrounding surface. [ 1913 Webster ]

a. [ L. luculentus, from lux, lucis, light. ] 1. Lucid; clear; transparent. Thomson. [ 1913 Webster ]

2. Clear; evident; luminous. “ Most luculent testimonies.” Hooker. [ 1913 Webster ]

3. Bright; shining in beauty. [ Obs. ] [ 1913 Webster ]

Most debonair and luculent lady. B. Jonson. [ 1913 Webster ]

adv. In a luculent manner; clearly. [ 1913 Webster ]

n. [ From Lucullus, a Roman consul, famous for his great wealth and luxury: cf. F. lucullite. ] (Min.) A variety of black limestone, often polished for ornamental purposes. [ 1913 Webster ]

‖n. (Bot.) An American genus of sapotaceous trees bearing sweet and edible fruits. [ 1913 Webster ]

☞ Lucuma mammosum is called natural marmalade in the West Indies; Lucuma Caimito, of Peru, furnishes a delicious fruit called lucuma and caimito. [ 1913 Webster ]