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| any of a class of chemical compounds having the general formula ROH, where R represents an alkyl group and ?OH a hydroxyl group |
| a colorless, pungent, suffocating, highly water-soluble, gaseous compound, NH3, usually produced by the combination of nitrogen and hydrogen gases |
| test paper | |
| —n | |
| 1. | chem See also litmus paper impregnated with an indicator for use in chemical tests |
| 2. | (Brit) education |
| a. the question sheet of a test | |
| b. the paper completed by a test candidate | |