Definitions
Century Dictionary and Cyclopedia
- Occurring before daylight; preceding the dawn. Specifically applied to assemblies of Christians held in ancient times before daylight, at first to escape persecution, and afterward from motives of devotion or convenience.
Wiktionary
- adj. Before dawn
GNU Webster's 1913
- adj. Held or being before light; -- a word applied to assemblies of Christians, in ancient times of persecution, held before light in the morning.
Examples
“Pleiades, in the penultimate antelucan hour, shod in sandals of bright gold, coifed with a veil of what do you call it gossamer.”
“How serene does she now arise, a queen among the Pleiades, in the penultimate antelucan hour, shod in sandals of bright gold, coifed with a veil of what do you call it gossamer.”
“Hardly anything could be more isolated or more self-contained than the lives of these two walking here in the lonely antelucan hour, when gray shades, material and mental, are so very gray.”
Lists
These user-created lists contain the word ‘antelucan’.
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Logolepsy
"Luciferous Logolepsy is a collection of over 9,000 obscure English words. Though the definition of an 'English' word might seem to be straightforward, it is not. There exist so many adopted, deriv...
Anschauung, Areopagus, Argus, Briarean, Dei gratia, Dei judicium, Deo volente, Duecento, Foehn, Geflugelte Worte, Gegenschein, Hakenkreuz and 9230 more...
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SeanCroft's list
oleaginous, antelucan, anemones, duennes, pluterperfect, peritoneal, peritoneum, abattoir, accouchement, morganatic, teratalogy, dysmorphology and 21 more...
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Originventory
Beformitables; previousness, past-referents, and origins.
erstwhile, formication, quondam, atavistic, umquhile, yestreen, hesternal, hesternopothia, pridian, ere, retrophilia, ante mortem and 72 more...

jmjarmstrong JM enjoyed his antelucan slumber before it dawned on him. Nov 26, 2009
whichbe adj. - pertaining to or occurring before dawn. May 15, 2008
brtom "How serene does she now arise, a queen among the Pleiades, in the penultimate antelucan hour ..."
Joyce, Ulysses, 14 Jan 20, 2007