ISOLATE

I. transitive verb (-lated; -lating) Etymology: back-formation from ~d set apart, from French isolé, from Italian isolato, from isola island, from Latin insula Date: 1799 to set apart from others, to select from among others, insulate , isolator noun II. adjective Date: 1819 being alone ; solitary , ~d , III. noun Date: 1890 an individual, population, strain, or culture obtained by or resulting from selection or separation, an individual socially withdrawn or removed from society