luma in English dictionary luma Meanings and definitions of "luma" (numismatics) currency unit of Armenia, worth one hundredth of Armenian dram The brightness in an image, as opposed to the saturation or chroma. noun (numismatics) A currency unit of Armenia, worth one hundredth of an Armenian dram. noun The brightness in an image, as opposed to the saturation or chroma. currency more Grammar and declension of luma luma ( plural lumas or luma) luma ( uncountable) luma (plural lumas or luma) luma (uncountable) more Luma Sample sentences with "luma" Declension Stem Try again Available translations Armenian Catalan Cebuano Chinese Finnish French German Irish Italian Korean Macedonian Marathi Polish Portuguese Russian Spanish Swedish Authors