transitive verb attenuated, attenuating
- to make slender or thin
- to dilute or rarefy
- to lessen in severity, value, amount, intensity, etc.; weaken
- Electronics to reduce the amplitude or strength of (an electrical signal)
- Microbiol. to reduce the virulence of (a bacterium or virus) usually to make a vaccine
< L attenuatus, pp. of attenuare, to make thin < ad- to + tenuare < tenuis, thin
to become thin, weak, etc.