Isolate

v. t.
  1. To place in a detached situation; to place by itself or alone; to insulate; to separate from others; as, to isolate an infected person from others; to isolate the troublemakers in a classroom.
  2. (Elec.) To insulate. See Insulate.
  3. (Chem.) To separate from all foreign substances; to make pure; to obtain in a free state; as, to isolate the desired product from a reaction mixture.
  4. (Microbiol.) To obtain a culture of a microorganism in pure form (from a complex mixture); as, to isolate Eschericia coli from a patient's blood.

n.
  1. Something that has been isolated; as, an isolate of a powerful antibiotic from a tropical plant; an isolate of tuberculosis bacillus from an infected patient.