i·de·ol·o·gy 
(ī′dē-ŏlə-jē, ĭd′ē-)
(ī′dē-ŏlə-jē, ĭd′ē-)n. pl. i·de·ol·o·gies
A set of doctrines or beliefs that are shared by the members of a social group or that form the basis of a political, economic, or other system.
[French idéologie : idéo-, ideo- + -logie, -logy.]
i′de·olo·gist n.
- 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-
- xyl-
- xylan
- xylem
- xylene
- xylidine
- xylitol
- xylo-
- Xylocaine
- xylograph
- xylographer