glycoside

noun

gly·​co·​side ˈglī-kə-ˌsīd 

: any of numerous sugar derivatives that contain a nonsugar group bonded to an oxygen or nitrogen atom and that on hydrolysis yield a sugar (such as glucose)

glycosidic

ˌglī-kə-ˈsi-dik 

adjective

glycosidically

ˌglī-kə-ˈsi-di-k(ə-)lē 

adverb

Examples of glycoside in a Sentence

Recent Examples on the Web

Foxgloves This beautiful flower has trumpet-like blossoms that contain cardiac glycoside toxins, which interfere with the heart’s electrolyte balance. — Amy Deyoung, USA Today, 28 May 2026

Its leaves contain glycosides and terpenes, which can improve blood circulation, provide antioxidant protection and offer neuroprotective benefits, per the NCCIH. — Ryan Brennan may 6, Sacbee.com, 6 May 2026

Elderberry contains cyanogenic glycosides, which can be toxic and unappealing to deer. — Sj McShane, Martha Stewart, 14 Apr. 2026

These plants contain cardiac glycosides, which can cause unpleasant symptoms for dogs and cats alike, such as drooling, diarrhea, abdominal pain, abnormal heart rhythm, and even some neurologic signs. — Kansas City Star, 24 Mar. 2026

Word History

Etymology

alteration of glucoside

First Known Use

1855, in the meaning defined above

Rhymes for glycoside

• actinide
• aldehyde
• alkoxide
• alongside
• amplified
• arsenide
• beautified
• biocide
• bisulphide
• butoxide
• calcified
• ceramide

Medical Definition

glycoside

noun

gly·​co·​side ˈglī-kə-ˌsīd 

: any of numerous sugar derivatives that contain a nonsugar group attached through an oxygen or nitrogen bond and that on hydrolysis yield a sugar (as glucose)

glycosidic

ˌglī-kə-ˈsid-ik 

adjective

glycosidically

-i-k(ə-)lē 

adverb