1. (in biotechnology) A @[email protected] molecule (@[email protected], virus, bacteriophage, artificial or cut @[email protected] molecule) capable of being replicated and bearing cloning sites for the introduction of foreign @[email protected], used to introduce this @[email protected] into host cells.
  2. Any organism that transmits a disease between two hosts.
PAC, 1992, 64, 143. (Glossary for chemists of terms used in biotechnology (IUPAC Recommendations 1992)) on page 168 [Terms] [Paper]