As of January 27, 2013, Parcel Select was split into Parcel Select, for online purchasing, and Standard Post for purchasing at the Post Office. Parcel Select is significantly cheaper than Standard Post. Parcel Select ships at the same speed as First Class mail.
Wiktionary (0.00 / 0 votes) Rate this definition: dosimeter (Noun). A device used to measure a dose of ionising radiation. These normally take the form of either Optically Stimulated Luminescence (OSL), photographic film, thermoluminescent devices (TLD) or electronic personal dosimeters (PDM).
n. 1. 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.