dosage
n.-
1 medical amount and frequency (n.) B2 Upper Intermediate Medicinethe amount of medicine you take, including how often and for how long you take it.
the prescribed amount of a therapeutic agent, including the frequency and duration of administration.
ExampleThe doctor increased the dosage of her heart medicine to twice a day.
ExampleThe clinical trial aimed to determine the optimal dosage that would maximise efficacy while minimising adverse side effects in elderly patients.
UsageOften used with 'increase', 'decrease', or 'adjust'.
PitfallThe doctor gave me a high dosage of pills.The doctor gave me a high dose of pills.Use 'dose' for a single quantity of medicine; use 'dosage' for the overall plan or frequency of taking it.
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2 adding a substance (n.) C1 Advanced Technical Sciencethe act of adding a small, measured amount of something to a liquid or mixture.
the addition of a specific, measured quantity of a substance to a larger volume, often in industrial or chemical processes.
ExampleThe winemaker carefully checked the sugar dosage before bottling the wine.
ExamplePrecise dosage of chlorine is essential in water treatment facilities to ensure safety without affecting the taste of the supply.
UsageCommon in chemistry and food science contexts.
From French dosage.