Definition of illuminance in English:

illuminance

Syllabification: il·lu·mi·nance
Pronunciation: /iˈlo͞omənəns
 
/

noun

Physics
  • The amount of luminous flux per unit area.
    More example sentences
    • Quantitative statistical information is also provided in the form of minimum, average, and maximum work-plane illuminance.
    • The table overleaf gives average illuminances and minimum measured illuminances for different types of work.
    • The vertical illuminances on the small targets were measured for each session and are shown in Figure II - 7.

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Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody