phy·to·gen·ic 
(fī′tō-jĕnĭk) also phy·tog·e·nous (fī-tŏjə-nəs)
(fī′tō-jĕnĭk) also phy·tog·e·nous (fī-tŏjə-nəs)adj.
Derived from or formed by plants: phytogenic hydrocarbons.
- xoloitzcuintli
- XOR
- Xosa
- Xosa
- XPS
- x-radiation
- X-rated
- x-ray
- x-ray astronomy
- x-ray burster
- x-ray crystallography
- x-ray diffraction
- x-ray fish
- x-ray microscope
- x-ray photoemission spectroscopy
- x-ray spectrometer
- x-ray spectrometry
- x-ray spectroscope
- x-ray spectroscopy
- x-ray star
- x-ray therapy
- x-ray tube
- Xuthus
- Xuzhou
- xyl-