© 2026 Sloth Lingo. Learn easy. Lounge wisely.

sulfide

Upper-Intermediate (B2)

IPA: //ˈsʌlfaɪd//

KK: /ˈsʌlfaɪd/

noun
Definition

A chemical compound that contains sulfur and is formed with another element, often a metal, where sulfur has a negative charge.


Example

Copper sulfide is commonly used in the production of semiconductors.


Conversation
Sloth A
Have you ever heard of a sulfide?
Sloth B
I think so, but I can't remember what it is exactly.
Sloth A
It's a compound that contains sulfur, usually with a metal.
Sloth B
Oh right! I remember now, they can be pretty important in chemistry.

Synonyms & Antonyms
Synonyms
thioether
sulfide
sulfide
Antonyms
oxide
chloride
fluoride
Root Explanation

**Sulfide** → It is formed from "sulfur" (from Latin *sulfur*, meaning the element sulfur) and "-ide" (a suffix used in chemistry to denote a binary compound). The word "sulfide" refers to a compound consisting of sulfur and another element or group.

Memory Tip

Think of sulfur as the main element in sulfide, and remember that sulfide is a compound that includes sulfur combined with another element.

Visually Confused Words
sulides
sulidae
slide
subsulfide
sulphide
selfcide
gulfside
bisulfid
Is this page helpful?