1. [syn: whinstone, whin]
The Collaborative International Dictionary of English v.0.48:
Whinstone \Whin"stone"\, n. [Whin + stone; cf. Scot.
A provincial name given in England to basaltic rocks, and
applied by miners to other kind of dark-colored unstratified
rocks which resist the point of the pick. -- for example, to
masses of chert. Whin-dikes, and whin-sills, are names
sometimes given to veins or beds of basalt.
WordNet (r) 3.0 (2006):
n 1: any of various hard colored rocks (especially rocks
consisting of chert or basalt) [syn: whinstone, whin]