painting or drawing included in a book (especially in illuminated medieval manuscripts)
an interpretation that removes obstacles to understanding; "the professor's clarification helped her to understand the textbook"
Any painted or penwork decoration (particularly gold or silver) used to adorn a manuscript, including such features as canon tables, calendars, carpet pages, author, donor, or evangelist portraits, miniatures, initials, borders, etc , but excluding such features as simple pen-flourished letters and line fillers, or the highlighting of letters or paragraph marks within a text usually executed in red or blue ink
Art of illustrating and decorating manuscripts Usually entails painting in watercolor or tempera on parchment or paper Popular during the Romanesque period to educate the faithful through sacred images
The density of the luminous flux incident on a surface; it is the quotient of the luminous flux by the area of the surface when the latter is uniformly illuminated