Word Pronunciation & Dictionary

acid-fast

Word Rarity Uncommon

Frequency: 4.37 in modern English

Syllables
acid--fast
IPA
14
Scrabble Score
8
Letters
3
Syllables
7
Unique Chars

Meaning

adj

Retaining stain when treated with an acidic solution.

Inflected Forms

more acid-fast (comparative) most acid-fast (superlative)

Phrases

acid-fast bacillus

Questions

What does acid-fast mean?
Retaining stain when treated with an acidic solution.

How to pronounce acid-fast

  1. Open the pronunciation page — Open the Speakur entry for “acid-fast”.
  2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “acid-fast”.
  4. Repeat and practice — Say “acid-fast” aloud, matching stress and vowels until it feels natural.