英和和英

動詞

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

1. (ambitransitive) To reduce in density.
   • 2013, Beth Schrope, Surgical and Interventional Ultrasound‎:

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

関連する語

• rarefaction