basalt

noun
ba·​salt | \ bə-ˈsȯlt How to pronounce basalt (audio) , ˈbā-ˌsȯlt How to pronounce basalt (audio) \

Definition of basalt

: a dark gray to black dense to fine-grained igneous rock that consists of basic plagioclase, augite, and usually magnetite

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Other Words from basalt

basaltic \ bə-​ˈsȯl-​tik How to pronounce basaltic (audio) \ adjective

Examples of basalt in a Sentence

Recent Examples on the Web

Ludovico Sergardi, who oversaw public works at Saint Peter’s Basilica, helped introduce the beveled black basalt cobblestones, known as sampietrini, which are central to the city’s charm. Jason Horowitz, New York Times, "All Roads Lead to Rome, Where Potholes Will Destroy Your Tires," 25 Mar. 2018 The rock is a basalt, which O'Neil's team believes was, at one point, underneath the Earth's first oceans. William Herkewitz, Popular Mechanics, "A Chunk of Earth's Original Crust Has Been Discovered," 16 Mar. 2017 Groundwater in basalt would lose all its CO2 and attain a high pH through reactions with the rock. Scott K. Johnson, Ars Technica, "The secret to Mars’ past warmth could be beneath Curiosity’s wheels," 9 Aug. 2018 Climeworks' small plant captures that carbon and injects it back into the ground, where mineral reactions help the CO2 bind with basalt, essentially storing the gas as a rock. Megan Geuss, Ars Technica, "Company that sucks CO2 from air announces a new methane-producing plant," 4 Oct. 2018 The bronze-and-basalt cocktail tables are custom, the steel wall lamp is by Wo & Wé, and the burl-root sculpture on the mantel is from Full Circle Modern. Bob Morris, ELLE Decor, "A Minimalist West Village Townhouse Is Given a Sensuous and Cerebral New Life," 23 Nov. 2018 In Iceland, Climeworks is turning its captured carbon dioxide into basalt rock, while in Switzerland the gas is used as a fertilizer in a greenhouse, and in Italy, the company is using the carbon dioxide to make methane fuel for trucks. Umair Irfan, Vox, "Sucking CO2 out of the atmosphere, explained," 24 Oct. 2018 But crushed basalt could do the same pH-adjusting job while providing a variety of additional benefits. Scott K. Johnson, Ars Technica, "Crush the right rock and spread it on farms to help soil and the climate," 22 Feb. 2018 Elegant teak and basalt accents echo the ancient temples nearby. Town & Country, "These Are the 83 Top Hotels Around the World," 6 Oct. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'basalt.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of basalt

1601, in the meaning defined above

History and Etymology for basalt

Latin basaltes, manuscript variant of basanites touchstone, from Greek basanitēs (lithos), from basanos touchstone, from Egyptian bḫnw

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Statistics for basalt

Last Updated

16 Apr 2019

Look-up Popularity

Time Traveler for basalt

The first known use of basalt was in 1601

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More Definitions for basalt

basalt

noun

English Language Learners Definition of basalt

: a type of dark gray to black rock

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More from Merriam-Webster on basalt

Rhyming Dictionary: Words that rhyme with basalt

Spanish Central: Translation of basalt

Nglish: Translation of basalt for Spanish Speakers

Britannica.com: Encyclopedia article about basalt

Comments on basalt

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