oral rehydration solution
B1CEFR level
45/100Rarity: uncommon
TechnicalRegister
A balanced mixture of water, salts and sugar given by mouth to replace fluid lost through diarrhoea and vomiting.
Give oral rehydration solution in small sips little and often rather than large drinks.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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