Steroid Definition
 stĕroid, stîr- 
    noun
  
 Any of a group of compounds including the sterols, bile acids, and sex hormones, characteristically having the carbon-atom ring structure of the sterols; specif., an anabolic steroid.
Webster's New World 
A drug consisting of, or a regimen involving, a compound from this group.
 Webster's New World 
An anabolic steroid.
 American Heritage Medicine 
(sports, US) Any chemical compound used to enhance athletic performance.
Wiktionary 
Synonyms: 
  - sex-hormone
 - steroid hormone
 
Other Word Forms of Steroid
Noun
Singular:
 steroidPlural:
 steroidsIdioms, Phrasal Verbs Related to Steroid
Origin of Steroid
-  
From sterol + -oid.
From Wiktionary
 ster(ol) –oid
From American Heritage Dictionary of the English Language, 5th Edition
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