200 MILLIGRAMS is a unit of measurement for mass, which is commonly used to measure the amount of medication prescribed. CARAT is a five-letter word meaning a unit of weight for precious stones, equal to 200 milligrams. CARATS is a six-letter word meaning more than one CARAT. DOSE is a four-letter word meaning an amount of medicine taken at one time. ALEX is a four-letter word meaning a unit of weight equal to one thousandth of a CARAT. OCARAT is a six-letter word meaning a unit of weight equal to one hundredth of a CARAT. ONECARAT is an eight-letter word meaning a unit of weight equal to one CARAT. CALIFORNIARAT is a thirteen-letter word meaning a unit of weight equal to one-fifth of a CARAT.