boron
noun
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Definition of boron
: a trivalent metalloid element found in nature only in combination and used especially in glass and detergents — see Chemical Elements Table
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Other Words from boron
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adjective
Examples of boron in a Sentence
Recent Examples on the Web
The boron, which is encased by protective rock, heads miles underground to the lower mantle. — Christopher Carbone, Fox News, "Extremely rare blue diamonds lurk deep in Earth's core," 2 Aug. 2018 Sharygin said that synthetic boron nitride, another mineral produced at insanely hot temperatures, is likely the only mineral that comes close to being as hard as a diamond. — Kimberly Hickok, Fox News, "Mineral never seen on Earth found inside Russian meteorite," 2 Oct. 2018 Their greyish-blue features come from trace particles of boron, comparatively less rare than diamonds, caught up within these bonds. — David Grossman, Popular Mechanics, "The Hope Diamond Formed At The Bottom of The Ocean," 2 Aug. 2018 Their striking blue hue, which is partly dependent on the amount of the element of boron the gem captures, is helping scientists to unlock the mysteries deep in the planet's core. — Christopher Carbone, Fox News, "Extremely rare blue diamonds lurk deep in Earth's core," 2 Aug. 2018 The right pH and the organic matter help ensure that nutrients, particularly essential micronutrients like boron, are readily available. — Kris Wetherbee, Good Housekeeping, "6 Things You Need To Know Before You Plant Broccoli This Fall," 22 Aug. 2016 For example, a few nitrogen atoms among a diamond’s millions of carbon atoms can make the rock appear yellow or brown, while blue diamonds have been besmirched with a few boron atoms. — Gemma Tarlach, Discover Magazine, "20 Things You Didn't Know About ... Diamonds," 23 Mar. 2018 Lead, arsenic, boron, cadmium, chromium, cobalt, copper, lead, mercury, molybdenum, selenium, thallium, and uranium are among the chemicals and heavy metals listed with coal ash deposits. — Grace Schneider, The Courier-Journal, "An Indiana county is paying a steep price for burying toxic coal ash," 18 May 2018 Groundwater monitoring The department, at the request of a commenter, added boron to the list of contaminants that must be monitored at CCR sites and increased the required background monitoring. — Dennis Pillion, AL.com, "Alabama passed state coal ash rules: What's in them?," 25 Apr. 2018These example sentences are selected automatically from various online news sources to reflect current usage of the word 'boron.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for boron
boron
noun
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Kids Definition of boron
: a powdery or hard solid chemical element that is used especially in making glass and detergents
boron
noun
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Medical Definition of boron
: a trivalent metalloid element found in nature only in combination and used in metallurgy and in composite structural materials —symbol B — see Chemical Elements Table
Other Words from boron
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adjective
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