单词 | smectite |
释义 | smectite/ˈsmɛktʌɪt![]() noun [mass noun] A clay mineral (e.g. bentonite) which undergoes reversible expansion on absorbing water.The clay mineral smectite, with physical properties that make it unsuitable as a soil if it is wet, is only found in major amounts in covered stadiums....
OriginEarly 19th century: from Greek smēktis 'fuller's earth' + -ite1. |
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