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steroid

Syllabification: (ste·roid)

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Definition of steroid

noun

Biochemistry
  • any of a large class of organic compounds with a characteristic molecular structure containing four rings of carbon atoms (three six-membered and one five). They include many hormones, alkaloids, and vitamins.

Phrases

on steroids

used to suggest a highly exaggerated, enhanced, or accelerated version of something:high-protein gelatin squares, available in bright red or bright green, sort of like Jell-O on steroids

Derivatives

steroidal

Pronunciation: /steˈroidl, sti-/

adjective

Origin:

1930s: from sterol + -oid

steroid in other Oxford dictionaries

Definition of steroid in the British & World English dictionary