attenuate
/əˈtɛn.juˌeɪt/ verb, adjective
Forms attenuates attenuating attenuated
- verb (transitive) To reduce in size, force, value, amount, or degree.
- verb (transitive) To make thinner, as by physically reshaping, starving, or decaying.
- verb (intransitive) To become thin or fine; to grow less.
- verb (transitive) To weaken.
- verb (transitive) To rarefy.
- verb (transitive, medicine) To reduce the virulence of a bacterium or virus.
- verb (transitive, electronics) To reduce the amplitude of an electrical, radio, or optical signal.
- verb (brewing) Of a beer, to become less dense as a result of the conversion of sugar to alcohol.
- adjective Slender, thin.
- adjective (in consistency) Rarefied, thin, refined.
- adjective (botany, of leaves) Gradually tapering into a petiole-like extension toward the base.
Synonyms
dilute diminish lessen mitigate slender weaken rarefy attenuated faded weakened
Antonyms
Etymology
The verb is first attested in 1530, the adjective in 1626; borrowed from Latin attenuātus, the perfect passive participle of attenuō (see -ate (verb-forming suffix) and -ate (adjective-forming suffix)), from ad- (“to, towards, at”) + tenuo (“to make thin”), itself from tenuis (“thin”) + -ō (verb-forming suffix).
Webster’s 1913
- verb To make thin or slender, as by mechanical or chemical action upon inanimate objects, or by the effects of starvation, disease, etc., upon living bodies.
- verb To make thin or less consistent; to render less viscid or dense; to rarefy. Specifically: To subtilize, as the humors of the body, or to break them into finer parts.
- verb To become thin, slender, or fine; to grow less; to lessen.
- adjective Made thin or slender.
Etymology [L. attenuatus, p. p. of attenuare; ad + tenuare to make thin, tenuis thin. See Thin.]
Etymology [L. attenuatus, p. p.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “attenuate”, CC BY-SA 4.0. Details