the J stands for Jumper as in Air Force Pararescue Jumper. The term Pararescue Jumper is a retronym of the initials 'PJ' that were used on an Air Force Form 5 (Aircrew Flight Log) to identify anyone who is onboard in order to jump from the aircraft..Source(s): http://en.wikipedia.org/wiki/United_Stat...he J stands for Jumper as in Air Force Pararescue Jumper. The term Pararescue Jumper is a retronym of the initials 'PJ' that were used on an Air Force Form 5 (Aircrew Flight Log) to identify anyone who is onboard in order to jump from the aircraft..
Virologists are microbiologists who study microorganisms that quickly duplicate, resulting in the rapid spreading of viruses. Their primary work is to figure out how diseases like AIDS, SARS and hepatitis spread, in order to prevent more rampant development and to assist in vaccine development.
virion - (virology) a complete viral particle; nucleic acid and capsid (and a lipid envelope in some viruses). virus - (virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein.iÂ·riÂ·on. n. A complete viral particle, consisting of RNA or DNA surrounded by a protein shell and constituting the infective form of a virus.