WordReference Random House Unabridged Dictionary of American English © 2026
lam•pro•phyre
(lam′prə fīər′),USA pronunciation n. [Petrol.]
lam•pro•phyr•ic
(lam′prə fir′ik),USA pronunciation adj.
- Rocksany dark intrusive rock in which dark minerals occur both as phenocrysts and as groundmass.
- Greek lamprós clear) + -phyre
- 1885–90; lampro- (
'lamprophyre' also found in these entries (note: many are not synonyms or translations):