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| like or containing an alkali, which neutralize acids to form salts and turn red litmus paper blue, or having a pH value greater than 7 |
| a mixture composed of different substances or the same substance in different phases, such as solid ice and liquid water |
| polycyclic (pŏl'ĭ-sī'klĭk, -sĭk'lĭk) Pronunciation Key
Having two or more atomic rings in a molecule. Steroids are polycyclic compounds. |