n.
n. [ NL. dosis dose + -meter. ] a device for measuring doses of radiation, especially ionizing radiation such as X-rays, gamma rays, or ionizing particles. [ PJC ]
n. a dosimeter cosisting of a radiation-sensitive material, such as film, worn in a small package on a person's clothing, to record the accumulated radiation exposure of the person over a period of time; -- used to monitor the exposure of individuals, such as workers in a nuclear power plant, to ionizing radiation. [ PJC ]