Anything used in a scientific experiment to indicate the presence of a substance or quality, change… a substance which may be added to a solution…
| 单词 | θ67268 |
| 释义 | the world > matter > chemistry > chemical tests > indicators > [noun] (25) indicator1846 Anything used in a scientific experiment to indicate the presence of a substance or quality, change… a substance which may be added to a solution… chemosensor1969 A device for detecting the presence of specific chemical molecules in the air. Also: a chemical compound that indicates the presence of specific… Subcategories:— pH indicators (7) — other indicators or biological stains (5) — test papers (10) — destaining (1) |
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