from The Century Dictionary and Cyclopedia
- n. In mineralogy, a figure produced in a section of some minerals by the pressure of a rather sharp point: thus, upon a sheet of mica the pressure-figure has the form of a six-rayed star, which is diagonal in position to the more easily obtained percussion-figure — that is, its rays are normal to edges of the prism and clinopinacoid.
Sorry, no etymologies found.
Sorry, no example sentences found.
Wordnik is becoming a not-for-profit! Read our announcement here.