| micelle | (noun) an electrically charged particle built up from polymeric molecules or ions and occurring in certain colloidal electrolytic solutions like soaps and detergents | - |
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| pumice | (noun) a light glass formed on the surface of some lavas; used as an abrasive | Synonyms: pumice stone |
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| semicentenary | (noun) the 50th anniversary (or the celebration of it) | Synonyms: semicentennial |
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| semicentennial | (noun) the 50th anniversary (or the celebration of it) | Synonyms: semicentenary |
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| vermicelli | (noun) pasta in strings thinner than spaghetti | - |
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