01 a. Composed by candlelight, or by night; of or pertaining to night studies; laborious or painstaking.
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1.
Composed by candlelight, or by night; of or pertaining to night studies; laborious or painstaking.
Entry
1 sense
Webster, 1913
Lucubratory
· Lu·cu·bra·to·ry
· IPA /ləˈkjubɹətɔɹi/