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

At Cheyava Falls, though, the rocks show no signs of being altered by heat or pressure that could have driven fast chemical reactions, yet sulfides are present in notable amounts. —Sharmila Kuthunur, Space.com, 3 Oct. 2025

Often, that means breaking chemical bonds that keep minerals bound to sulfur in sulfide ores. —Vanessa Bates Ramirez, Scientific American, 1 Oct. 2025

Hydrogen sulfide, highly toxic gas that smells like rotten eggs. —Noelle Phillips, Denver Post, 30 Sep. 2025

Handling brittle ceramics or moisture-sensitive sulfides requires completely new machinery and processes that don’t exist at an industrial scale yet. —Tejasri Gururaj, Interesting Engineering, 18 Sep. 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