/'sterɔɪd, 'stɪərɔɪd; `stɛrɔɪd, `stɪrɔɪd/
n (chemistry 化) any of a number of organic compounds naturally produced in the body, including certain hormones and vitamins 甾族化合物; 类固醇
*He's being treated with steroids for leukaemia. 他因患白血病正在接受类固醇治疗.

n[C]
[Date: 1900-2000; Origin: sterol type of alcohol (20-21 centuries) (from cholesterol) + -oid]
a chemical that the body produces naturally or that can be made as a drug to treat illness and injuries. Steroids are sometimes used illegally by people doing sports to improve their performance
on steroids
　a bodybuilder on steroids
sth on steroids
AmE informal used to say that something is much bigger, stronger, more impressive etc than something else that is similar to it - used humorously
　They sell cinnamon rolls on steroids.