( a. )
Of or pertaining to certain veins of feldspathic or porphyritic rock crossing metalliferous veins in the mining districts of Cornwall; as, an elvan course.
( a. )
Of or pertaining to certain veins of feldspathic or porphyritic rock crossing metalliferous veins in the mining districts of Cornwall; as, an elvan course.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012