Word.ws English Dictionary

rarefact

rarefact verb: to reduce in density.

Verb

rarefact (third-person singular simple present rarefacts, present participle rarefacting, simple past and past participle rarefacted)

  1. (ambitransitive) To reduce in density.
    • As the ultrasound wave compresses and rarefacts through the medium, it causes microbubbles in the tissue to contract and expand.2013, Beth Schrope, Surgical and Interventional Ultrasound

Forms of rarefact

third-person singular presentrarefacts
present participlerarefacting
past participlerarefacted
pastrarefacted

Origin of rarefact

From Middle French raréfaction.

Questions about rarefact

What does rarefact mean?
Rarefact means to reduce in density.
What part of speech is rarefact?
Rarefact is a verb.
What is the past tense of rarefact?
The past tense of rarefact is rarefacted.

Words near rarefact in the dictionary

  1. rared
  2. raree
  3. raree show
  4. raree shows
  5. rarees
  6. rarefact
  7. rarefacted
  8. rarefacting
  9. rarefaction
  10. rarefactional
  11. rarefactions

Source and license

Adapted from Wiktionary: rarefact (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “rarefact.” Word.ws, https://word.ws/rarefact. Based on Wiktionary, CC BY-SA 4.0.