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cobalt

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cobalt

Main Entry:: co·balt
Pronunciation:: \ˈkō-ˌbȯlt\
Function:: noun
Etymology:: German Kobalt, alteration of Kobold, literally, goblin, from Middle High German kobolt; from its occurrence in silver ore, believed to be due to goblins
Date:: 1683

1 : a tough lustrous silver-white magnetic metallic element that is related to and occurs with iron and nickel and is used especially in alloys — see element table 2 : cobalt blue 2

Learn more about "cobalt" and related topics at Britannica.com

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