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

Selenium sulfide helps slough off flakes and has anti-inflammatory properties. —Nancy Lebrun, Verywell Health, 12 Feb. 2025

Temporarily relocating a water intake to draw water from the lower levels of the mine pit where sulfide levels are higher. —Catherine Muccigrosso, Charlotte Observer, 3 Feb. 2025

Hydrogen sulfide is a poisonous, corrosive and flammable gas that’s produced by the breakdown of both organic matter and gypsum-containing materials like drywall. —Michelle Gale, Sun Sentinel, 13 Jan. 2025

Other sources for copper are chalcocite, a sulfide named after the Greek word for copper, the copper silver sulfide acanthite, and the rare copper iron sulfide bornite. —David Bressan, Forbes, 31 Dec. 2024

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

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