path·o·gen 
(păthə-jən)
(păthə-jən)n.
An agent that causes disease, especially a virus, bacterium, or fungus.
- intraocular
- intraparty
- intrapersonal
- intrapersonally
- intrapreneur
- intrapreneurial
- intrapsychic
- intrapsychically
- intraspecies
- intraspecific
- intrastate
- intrauterine
- intrauterine device
- intravasation
- intravascular
- intravascularly
- intravenous
- intravenously
- intravenous pyelogram
- intravenous pyelography
- intravital
- intravitally
- intreat
- intrench
- intrench