sulfide

noun

sul·​fide ˈsəl-ˌfīd 

1

: any of various organic compounds characterized by a sulfur atom attached to two carbon atoms

2

: a binary compound (such as CuS) of sulfur usually with a more electropositive element or group : a salt of hydrogen sulfide

Examples of sulfide in a Sentence

Recent Examples on the Web

The deposit of mostly copper-bearing sulfides was discovered in 1986. —Frank Vaisvilas, jsonline.com, 15 July 2025

Chemical analysis will determine if they were enhanced with cinnabar red, a precious pigment derived from mercury sulfide. —Eli Wizevich, Smithsonian Magazine, 26 June 2025

The red was a deep shade, archaeologists said, meaning it may have been made from a precious pigment, and analysis will be needed to determine if the color was derived from cinnabar, a mineral like mercury sulfide. —Irene Wright, Miami Herald, 25 June 2025

New experiments have shown that the core of Mars formed much faster than Earth's core, thanks to molten iron and nickel sulfides seeping down through solid rock and into the center of the Red Planet. —Keith Cooper, Space.com, 2 June 2025

Word History

First Known Use

1836, in the meaning defined at sense 1

Phrases Containing sulfide

• cadmium sulfide
• hydrogen sulfide
• iron sulfide
• lead sulfide
• zinc sulfide

Rhymes for sulfide

• abide
• allied
• applied
• aside
• astride
• azide
• backside
• bankside
• bastide
• bayside
• bedside
• belied

Kids Definition

sulfide

noun

sul·​fide ˈsəl-ˌfīd 

: a compound of sulfur with one or more other elements : a salt of hydrogen sulfide

Medical Definition

sulfide

noun

sul·​fide

variants or chiefly British sulphide

ˈsəl-ˌfīd 

1

: any of various organic compounds characterized by a sulfur atom attached to two carbon atoms

2

: a binary compound (as CuS) of sulfur usually with a more electropositive element or group : a salt of hydrogen sulfide