sil·i·ca 
(sĭlĭ-kə)
(sĭlĭ-kə)n.
A white or colorless crystalline compound, SiO2, which in the form of quartz and certain other minerals is a chief component of the earth's crust. Silica sand is used in making a wide variety of materials, such as glass and concrete.
[New Latin, from Latin silex, silic-, hard stone, flint.]
- Indo-European root: ghend-
- Indo-European root: gher-
- 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-