Simple Definition of steroid

from our Learner's Dictionary

steroid

noun

ˈstɛˌroɪd
plural steroids
1
: a natural substance that is produced in the body
2
: anabolic steroid
a steroid user/abuser
He was accused of taking/using steroids.

Cite this Entry

“Steroid.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/steroid. Accessed 12 Oct. 2026.

More from Merriam-Webster on steroid

More from Merriam-Webster