Millicurie is a unit of measurement commonly used in nuclear medicine to measure the activity of radioactive substances. Some synonyms for millicurie include millibecquerel, mCi, MBq, and millicuries. Millicurie is often used interchangeably with millibecquerel, which is the international standard unit for radioactive activity. The mCi and MBq measurements are also commonly used in nuclear medicine, particularly in the United States and Europe respectively. Other synonyms for millicurie may include radioactive decay per unit time, radioactive intensity, or simply radioactivity. Regardless of the synonym used, millicurie is a vital measurement in the field of nuclear medicine, allowing accurate dosages to be administered for diagnostic and therapeutic purposes.