Standard Lemma guide

attenuation

noun · 9 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -eɪʃən
  • CMU ARPABET: AH0 T EH2 N Y UW0 EY1 SH AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A gradual diminishing of strength.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A reduction in the level of some property with distance, especially the amplitude of a wave or the strength of a signal.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A weakening in the virulence of a pathogen or other microorganism.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: biology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

The tapering of a leaf etc to a fine point.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: biology, botany, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A fabrication process in which a material is stretched out into a thin shape.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: engineering, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

The reduction of the active principles of medicines to minute doses.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: homeopathy, medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

The proportion of sugar that is converted to ethanol by a yeast.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: beverages, brewing, business, food, lifestyle, manufacturing

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

the property of something that has been weakened or reduced in thickness or density

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: weakness

9

noun

Meaning 9

weakening in force or intensity

Definition source: Princeton WordNet 3.0

Examples

  • attenuation in the volume of the sound

Meaning relationships

Synonyms: fading

Antonyms: none provided

Broader terms: weakening

History

Etymology

From Middle English attenuacioun, a borrowing from Latin attenuātiō (“a diminishing”). Equivalent to attenuate + -ion.

Across languages

Translations

38 source translations are retained for this English entry.

  • Afrikaans: verswakking — gradual diminishing in the strength
  • Bulgarian: намаляване (namaljavane) — gradual diminishing in the strength
  • Bulgarian: отслабване (otslabvane) — gradual diminishing in the strength
  • Danish: svækkelse — gradual diminishing in the strength
  • Finnish: vaimentuminen — gradual diminishing in the strength
  • Finnish: heikkeneminen — gradual diminishing in the strength
  • French: atténuation — gradual diminishing in the strength
  • Georgian: მილევა (mileva) — gradual diminishing in the strength
  • German: Verminderung — gradual diminishing in the strength
  • Irish: caolú — gradual diminishing in the strength
  • Italian: attenuazione — gradual diminishing in the strength
  • Macedonian: намалу́вање (namalúvanje) — gradual diminishing in the strength
  • Macedonian: ослабу́вање (oslabúvanje) — gradual diminishing in the strength
  • Polish: tłumienie — gradual diminishing in the strength
  • Romanian: atenuare — gradual diminishing in the strength
  • Romanian: diminuare — gradual diminishing in the strength
  • Russian: ослабле́ние (oslablénije) — gradual diminishing in the strength
  • Spanish: atenuación — gradual diminishing in the strength
  • Turkish: sönüm — gradual diminishing in the strength
  • Bulgarian: затихване (zatihvane) — physics: reduction in the level of some property with distance
  • Finnish: vaimentuminen — physics: reduction in the level of some property with distance
  • Finnish: vaimennus — physics: reduction in the level of some property with distance
  • Georgian: მილევა (mileva) — physics: reduction in the level of some property with distance
  • German: Attenuation — physics: reduction in the level of some property with distance
  • German: Dämpfung — physics: reduction in the level of some property with distance
  • Macedonian: снижу́вање (snižúvanje) — physics: reduction in the level of some property with distance
  • Macedonian: смалу́вање (smalúvanje) — physics: reduction in the level of some property with distance
  • Portuguese: atenuação — physics: reduction in the level of some property with distance
  • Russian: затуха́ние (zatuxánije) — physics: reduction in the level of some property with distance
  • Russian: аттенюа́ция (attɛnjuácija) — physics: reduction in the level of some property with distance
  • Finnish: heikkeneminen — biology: weakening, in the virulence
  • German: Attenuierung — biology: weakening, in the virulence
  • German: Abschwächung — biology: weakening, in the virulence
  • Polish: atenuacja — biology: weakening, in the virulence
  • Finnish: suippeneminen — botany: tapering to a fine point
  • Finnish: vetäminen — engineering: fabrication process in which a material is stretched out
  • Finnish: laimentaminen — homeopathy: reduction of the active principles of medicines
  • Finnish: laimennus — homeopathy: reduction of the active principles of medicines