chromium

noun

chro·​mi·​um ˈkrō-mē-əm 

: a blue-white metallic element found naturally only in combination and used especially in alloys and in electroplating see Chemical Elements Table

Examples of chromium in a Sentence

Recent Examples on the Web

The combustion process can also create new hazards; scientists were surprised to find airborne nanoparticles of hexavalent chromium, the contaminant made famous by the movie Erin Brockovich, hanging around cleanup sites. —Katharine Gammon, The Atlantic, 23 Jan. 2026

The chassis is now stiffer too, thanks to a chromium-molybdenum-steel trellis frame. —New Atlas, 18 Jan. 2026

Both the herbal supplement berberine and the mineral chromium can help keep blood sugar levels in check. —Megan Nunn, Verywell Health, 14 Jan. 2026

Multivitamins vary in composition by brand but usually combine vitamin A, several B vitamins, vitamins C, D, E and K with minerals such as calcium, magnesium, zinc, iron, iodine, copper, selenium, copper, manganese, potassium and chromium. —The Week Uk, TheWeek, 2 Jan. 2026

Word History

Etymology

chrome entry 1 + -ium

First Known Use

1807, in the meaning defined above

Phrases Containing chromium

• chromium picolinate

Rhymes for chromium

• ferrochromium
• prostomium

Kids Definition

chromium

noun

chro·​mi·​um ˈkrō-mē-əm 

: a blue-white metallic element found in nature only in combination and used especially in alloys and in chrome plating see element

Medical Definition

chromium

noun

chro·​mi·​um ˈkrō-mē-əm 

: a blue-white metallic element found naturally only in combination and used especially in alloys and in electroplating

—symbol Cr see Chemical Elements Table