Selective definition and meaning on Dictionary terms: adjective having the function or power of selecting; making a selection. characterized by selection, especially fastidious selection. of or relating to selection. Electricity, Radio. having good selectivity.
Selective meaning Discriminating, choosy. A term used in relation to 1) the blood brain barrier, which is selectively permeable; 2) antibodies, where antibodies will bind only to particular cells, a trait that is crucial for effective drug or radiation delivery; 3) other forms of treatment whose success relies on limiting the types of tissue affected.