The definition of botox is an injected botulin neurotoxin muscle relaxer and is sometimes used to treat spasms, tics and wrinkles.(noun)
The way many celebrity faces from ten years ago now look much younger is an example of botox.
See Botox in Webster's New World College Dictionary
Origin: bo(tulinum) tox(in) < ModL botulinum, species name < botulinus, former species name < L botulus, sausage: see botulism
See Botox in American Heritage Dictionary 4
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