Rarefact

verb

verb ·Rare ·Advanced level

Definitions

Verb
  1. 1
    To reduce in density. ambitransitive

    "As the ultrasound wave compresses and rarefacts through the medium, it causes microbubbles in the tissue to contract and expand."

Example

More examples

"As the ultrasound wave compresses and rarefacts through the medium, it causes microbubbles in the tissue to contract and expand."

Etymology

From Middle French raréfaction.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.