myostatin
noun
myo·stat·in
ˌmī-ə-ˈsta-tᵊn 
: a protein found mainly in skeletal muscle that is a transforming growth factor acting to restrain the growth of muscles
Two treatments that block a protein called myostatin, which slows muscle growth, are now in the pipeline.—
Rowan Hooper, New Scientist
Rowan Hooper, New ScientistCite this Entry
“Myostatin.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/myostatin. Accessed 18 Jul. 2025.
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