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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
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indicator go
(chemistry) a substance that changes color to indicate the presence of some ion or substance
(chemistry) a substance that changes color to indicate the presence of some ion or substance
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fluorescein, fluoresceine, fluorescent dye, resorcinolphthalein
a yellow dye that is visible even when highly diluted
a yellow dye that is visible even when highly diluted
noun.substance
1 Subcategories
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eosin, bromeosin go
a red fluorescent dye resulting from the action of bromine on fluorescein