di·a·lec·tol·o·gy 
(dī′ə-lĕk-tŏlə-jē)
(dī′ə-lĕk-tŏlə-jē)n.
The study of dialects.
di′a·lec′to·logi·cal (-tə-lŏjĭ-kəl) adj.
di′a·lec′to·logi·cal·ly adv.
di′a·lec·tolo·gist n.
- petrol
- petrolatum
- petroleum
- petroleum coke
- petroleum ether
- petroleum jelly
- petrolic
- petrologic
- petrological
- petrologically
- petrologist
- petrology
- Petronius
- "Petronius Arbiter."
- Petropavlovsk-Kamchatski
- Petropavlovsk-Kamchatskiy
- petrosal
- petrous
- Petrozavodsk
- Petrus
- Petrópolis
- PET scan
- PET scanner
- pet-sitter
- pet-sitting