rarefy

动词 rarefy:

1. lessen the density or solidity of
2. make more subtle or refined
   同义词：sublimate, subtilize
3. weaken the consistency of (a chemical substance)
   同义词：attenuate

1. The rarefied fluid said to run in the veins of the gods.
   灵液诸神血管里流动着的稀有液体
2. He moves in very rarefied circles; his friends are all lords.
   他活动于上流阶层，结交的尽是贵族。

rarefy 也作 rar.i.fy

v.（动词）
rar.e.fied,rar.e.fy.ing,rar.e.fies
v.tr.（及物动词）
To make thin, less compact, or less dense.
使稀薄：使变瘦，变淡，变得不紧凑，不浓密
To purify or refine.
精炼：使变纯或变精
v.intr.（不及物动词）
To become thin or less compact or dense.
变稀薄，变得不浓

来源：
Middle English rarefien
中古英语 rarefien
from Old French rarefier
源自 古法语 rarefier
from Medieval Latin r3rific3re
源自 中世纪拉丁语 r3rific3re
alteration of Latin r3rôfacere
拉丁语 r3rôfacere的变化
r3rus [rare]
r3rus [稀有的]
facere [to make] * see dhô-
facere [使] *参见 dhô-

【引伸】
rar.efi.able
adj.（形容词）