| 释义 |
alum
alum /ˈæl.əm/ noun [U] SPECIALIZED
► F0 a chemical substance containing aluminium used in dyeing (= changing the colour of something) and as an astringent (= substance that causes skin to tighten)Thesaurus+: ↑Specific chemicals, chemical compounds and gases , ↑Substances and structures in the body , ↑Types of chemical |