English word orthoquartzite comes from English quartzite, English ortho-
| Dictionary entry | Language | Definition |
|---|---|---|
| quartzite | English (eng) | A metamorphic rock consisting of interlocking grains of quartz. |
| ortho- | English (eng) | (chemistry) Having an extra proportion of water. (chemistry) in isomeric benzene derivatives, having the two substituents in adjacent positions (compare meta- and para-). (physics) of any molecule of the form X2 in which the two nuclei have parallel spin. Straight, right, proper. |
| orthoquartzite | English (eng) | A very pure quartz sandstone composed of usually well rounded quartz grains cemented by silica. |