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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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medium
(biology) a substance in which specimens are preserved or displayed
(biology) a substance in which specimens are preserved or displayed
noun.substance
1 Subcategories
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contrast medium, contrast material go
a substance that is opaque to x-rays