pla·gi·o·clase feldspar 
(plājē-ə-klās′, -klāz′, plăjē-)
(plājē-ə-klās′, -klāz′, plăjē-)n.
Any of a series of triclinic feldspars that are a common constituent of rocks, consisting primarily of a mixture of sodium aluminum silicate, NaAlSi3O8, and calcium aluminum silicate, CaAl2Si2O8.
[Greek plagio-, plagio- + Greek klasis, breaking (from its oblique cleavage) (from klān, to break).]
- Indo-European root: gher-
- Indo-European root: gherə-
- Indo-European root: ghes-
- Indo-European root: gheslo-
- Indo-European root: gheu-
- Indo-European root: gheu(ə)-
- Indo-European root: ghos-ti-
- Indo-European root: ghrebh-
- Indo-European root: ghrebh-
- Indo-European root: ghredh-
- Indo-European root: ghrendh-
- Indo-European root: ghrē-
- Indo-European root: ghrēi-
- Indo-European root: ghwer-
- Indo-European root: ghwībh-
- Indo-European root: ghē-
- Indo-European root: gleubh-
- Indo-European root: gnō-
- Indo-European root: gr̥ə-no-
- Indo-European root: gwei-
- Indo-European root: gwelə-
- Indo-European root: gwen-
- Indo-European root: gwerə-
- Indo-European root: gwerə-
- Indo-European root: gwet-