In a sentence
Six example sentences with cobalt, each labelled with its topic.
Persian tile makers ground cobalt into their glaze to get a blue that survived nine centuries of desert sun.
Art
Battery makers scrambled for cobalt when phone demand spiked, and the price tripled in eighteen months.
Technology
Livestock grazing on soil poor in cobalt waste away, since their gut bacteria cannot build the vitamin without it.
Medicine
Magnets made with cobalt keep their strength at high heat, which is why the metal turns up inside jet engines.
Science
One country mines roughly seventy percent of the world's cobalt, so a single strike there ripples through every battery factory.
Economics
Runoff from the cobalt pits has stained the river red for miles, and farmers downstream no longer irrigate from it.
Environment
Study cobalt until you keep it
Learn English words in sentences about topics you pick, with a quick quiz. With an account, words come back for review.
Found in these word lists
- Science Vocabulary ListAuthoritative
Each source is a published word list that contains cobalt. No exam board publishes an official GRE, GMAT or SAT list; GMAT words come from GRE lists and the Academic Word List.