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any of a large group of fat-soluble organic compounds, as the sterols, bile acids, and sex hormones, most of which have specific physiological action.
anabolic steroid.
Also, steroidal
[sti-roid-l, ste-] /stɪˈrɔɪd l, stɛ-/ (Show IPA). pertaining to or characteristic of a steroid.
on steroids, Slang. much larger, stronger, or more extreme than is normal or expected:
Yosemite is nature on steroids. He’s so lovable, he’s like Santa Claus on steroids.
(biochem) any of a large group of fat-soluble organic compounds containing a characteristic chemical ring system. The majority, including the sterols, bile acids, many hormones, and the D vitamins, have important physiological action

steroid ster·oid (stěr’oid’, stēr’-)
Any of numerous naturally occurring or synthetic fat-soluble organic compounds having as a basis 17 carbon atoms arranged in four rings and including the sterols and bile acids, adrenocortical and sex hormones, certain natural drugs such as digitalis compounds, and the precursors of certain vitamins. Also called steroid hormone. adj. ste·roid·al (stĭ-roid’, stě-)
Relating to or characteristic of steroids or steroid hormones.
ster’oid’ or ste·roid’al (stĭ-roid’l, stě-) adj.

Any of a large class of organic compounds having as a basis 17 carbon atoms arranged in four rings fused together. Steroids include many biologically important compounds, including cholesterol and other sterols, the sex hormones (such as testosterone and estrogen), bile acids, adrenal hormones, plant alkaloids, and certain forms of vitamins.

Any of various hormones having the structure of a steroid that are made synthetically, especially for use in medicine.

An anabolic steroid.

steroidal adjective

steroid definition

A group of molecules that includes cholesterol. The sex hormones estrogen and testosterone are built from steroids, as are many modern anti-inflammatory drugs.

Note: Steroids are often used illegally to increase the performance of competitive athletes of almost all age groups. They are banned in many athletic competitions, such as the Olympic Games.


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  • Stertor

    noun, Pathology. 1. a heavy snoring sound accompanying respiration in certain diseases. noun 1. laborious or noisy breathing caused by obstructed air passages stertor ster·tor (stûr’tər) n. A heavy snoring inspiratory sound occurring in coma or deep sleep, sometimes due to obstruction of the larynx or upper airways. ster’to·rous adj. ster’to·rous·ly adv.

  • Stet

    verb (used without object), stetted, stetting. 1. let it stand (used imperatively as a direction on a printer’s proof, manuscript, or the like, to retain material previously cancelled, usually accompanied by a row of dots under or beside the material). verb (used with object), stetted, stetting. 2. to mark (a manuscript, printer’s proof, etc.) with […]

  • Stethalgia

    stethalgia ste·thal·gi·a (stě-thāl’jē-ə, -jə) n. Pain in the chest.

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