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radiobiology 1 today the branch of biology concerned with the effects of radiation on living tissue and the use of radioactive tracers in the study of biological processes. Main Adv.
overweening 1 today particularly forward, vain, and self-promoting. [2 definitions] Main Adv.
abstain 1 today to choose not to do something. [2 definitions] Main Int.
pack1 1 today a container for goods or belongings, usu. flexible and carried on the back. [16 definitions] Main Adv.