rarefy

verb
/ˈɹɛəɹəˌfaɪ/

Etymology

From Middle English rarefien, from Old French rarefier (French raréfier), from Latin rarefacere (“make rare”). By surface analysis, rare + -fy.

  1. derived from rarefacere
  2. derived from rarefier
  3. inherited from rarefien

Definitions

  1. To make rare, thin, porous, or less dense.

    • By means of this gauge, Mr. Smeaton judged that his machine was incomparably better than any former one, as it seemed to rarefy the air in the receiver 1000, or even 2000 times, while the best of these only rarefied it about 140[…]
  2. To become rare, thin or less dense.

    • As water rarefies, it evaporates, forming visible steam, and this may be a step toward the final category of reality, fire. Anyone who has held a hand over a boiling kettle may feel the truth of this.[…]
    • Given the high quantity of water molecules in the human body it is worthy of note at this point that moisture rarefies when heated.[…]

The neighborhood

Vish — recursive loop

No curated loop yet for rarefy. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA