cobalt was our Word of the Day on 07/05/2011. Hear the podcast!
Theme music by Joshua Stamper ©2006 New Jerusalem Music/ASCAP
Recent Examples of cobalt from the Web
The 107-year-old Bromo tower showcased a number of light-themed art pieces, including one in which vintage, cobalt-blue bottles were lit up — some blinking, some still, some changing colors.
In one corner, a patternmaker is cutting fabric that will be made into hats for a menswear designer, in another, there is a rack of space suits, one in safety orange and one in cobalt.
As anyone in attendance can tell you, the weather was nothing short of glorious, with pale cobalt skies and a whisper of spring crispness lingering in the air.
The man was digging a toilet in his backyard when his shovel struck a shimmering blue vein of cobalt.
Ivan Glasenberg, the boss of Glencore, said that Western carmakers were falling behind China in stockpiling supplies of cobalt, one of the key elements in the batteries that power electric cars.
Most new car batteries are rechargeable and use lithium in some form for one of the electrodes, cobalt or carbon for the other, and aluminum oxide for the electrolyte.
While those classics always work, why not update your look with the season's amethyst, emerald, cobalt, or silver hues?
The samples were sent to an independent lab for analysis and showed elevated levels of pollutants, including lead, selenium, vanadium, barium, cadmium, cobalt, manganese, and arsenic.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cobalt.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Did You Know?
The metallic element "cobalt" ultimately draws its name from folklore. In Middle High German, "kobolt" denoted a usually helpful household elf that engaged in nasty pranks only when it was offended. Later, early Modern German Kobold came to refer to a variety of less helpful goblins inhabiting fields and mountains. The variant "Kobolt" in the 16th century was applied by German miners to ores containing the metal cobalt, which they considered to be worthless; they believed that mountain goblins had spoiled adjacent silver ores, or had stolen the silver within the ore. The metal itself in relatively pure form was not produced and described until the 17th century, when "cobalt," with its first letter influenced by New Latin cobaltum, became part of the international language of science.
Origin and Etymology of cobalt
First Known Use: 1683See Words from the same year
COBALT Defined for English Language Learners
Definition of cobalt for English Language Learners
: a hard, shiny, silver-white metal that is often mixed with other metals
COBALT Defined for Kids
Seen and Heard
What made you want to look up cobalt? Please tell us where you read or heard it (including the quote, if possible).