Curium is not a unit of measurement. Curium (Cm) is a chemical element with the atomic number 96. It is a radioactive element and is not used as a unit of measurement.

You might be thinking of other units of measurement that are sometimes related to radioactive materials, such as:

* Becquerel (Bq): A unit of radioactivity, representing one disintegration per second.

* Gray (Gy): A unit of absorbed dose of ionizing radiation.

* Sievert (Sv): A unit of equivalent dose of ionizing radiation, taking into account the biological effectiveness of different types of radiation.