Lumination

//l(j)uːmɪˈneɪʃən// noun

Definitions

Noun
  1. 1
    Illumination; specifically, artificial illumination. countable, rare, uncountable

    "Nor are we to think it strange, if after so great a quantity of luminous vapour had been carried up into the ether, out of the pores of the earth, the cause of its effervescence at length abating, or perhaps the matter consumed, these effluvia should at length subside, and form those two bright luminations which we have described; and, whose edges being turned to us, were capable to emit so much light that we might read by them. I choose to call them luminations, because, though they were but thin, doubtless they spread horizontally over a large tract of the earth's surface."

Etymology

From luminate + -ion, or a Latin *lūminātiōnem (“illumination”), from lūminō (“to brighten, to illuminate; to reveal (throw light on)”), from lūmen (“light”) (probably from lūx (“light”) + -men (suffix forming neuter nouns of the third declension)), from Proto-Indo-European *lewk-s-men (“light”) (from Proto-Italic *louks, from Proto-Indo-European *lewk- (“bright; light; white”) + *-mn̥ (suffix indicating a noun))) + Latin -tiōnem (“-tion”, suffix forming a noun relating to some action or the result of an action) (from Proto-Italic *-tiō, from Proto-Indo-European *-tis (suffix forming nouns from verbs)).

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