phy·to·pa·thol·o·gy 
(fī′tō-pə-thŏlə-jē)
(fī′tō-pə-thŏlə-jē)n.
The science of plant diseases.
phy′to·path′o·logic (-păth′ə-lŏjĭk), phy′to·path′o·logi·cal (-ĭ-kəl) adj.
phy′to·pa·tholo·gist n.
- irradiation
- irradiative
- irradiator
- irradicable
- irradicably
- irrational
- irrationalism
- irrationality
- irrationally
- irrationalness
- irrational number
- Irrawaddy
- irreal
- irreality
- irreclaimability
- irreclaimable
- irreclaimableness
- irreclaimably
- irreconcilability
- irreconcilable
- irreconcilably
- irrecoverable
- irrecoverably
- irrecusable
- irrecusably