Dictionary.com

lamprophyre

[ lam-pruh-fahyuhr ]
/ ˈlæm prəˌfaɪər /
Save This Word!

noun Petrology.
any dark intrusive rock in which dark minerals occur both as phenocrysts and as groundmass.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.

Origin of lamprophyre

1885–90; lampro- (<Greek lamprós clear) + -phyre

OTHER WORDS FROM lamprophyre

lam·pro·phyr·ic [lam-pruh-fir-ik], /ˌlæm prəˈfɪr ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use lamprophyre in a sentence

British Dictionary definitions for lamprophyre

lamprophyre
/ (ˈlæmprəˌfaɪə) /

noun
any of a group of basic igneous rocks consisting of feldspathoids and ferromagnesian minerals, esp biotite: occurring as dykes and minor intrusions

Word Origin for lamprophyre

C19: from Greek lampros bright + -phyre, from porphyry
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for lamprophyre

lamprophyre
[ lămprə-fīr′ ]

A dark igneous rock, having a porphyritic texture in which both the phenocrysts (larger crystals) and the matrix consist primarily of pyroxene, hornblende, and biotite.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK