Search Result for "rarefied": 
Wordnet 3.0

ADJECTIVE (2)

1. having low density;
- Example: "rare gasses"
- Example: "lightheaded from the rarefied mountain air"
[syn: rare, rarefied, rarified]

2. of high moral or intellectual value; elevated in nature or style;
- Example: "an exalted ideal"
- Example: "argue in terms of high-flown ideals"- Oliver Franks
- Example: "a noble and lofty concept"
- Example: "a grand purpose"
[syn: exalted, elevated, sublime, grand, high-flown, high-minded, lofty, rarefied, rarified, idealistic, noble-minded]



The Collaborative International Dictionary of English v.0.48:

Rarefy \Rar"e*fy\ (r[a^]r"[-e]*f[imac]; 277), v. t. [imp. & p.
   p. Rarefied (r[a^]r"[-e]*f[imac]d); p. pr. & vb. n.
   Rarefying (r[a^]r"[-e]*f[imac]`[i^]ng).] [F. rar['e]fier;
   L. rarus rare + -ficare (in comp.) to make; cf. L.
   rarefacere. See -fy.]
   To make rare, thin, porous, or less dense; to expand or
   enlarge without adding any new portion of matter to; --
   opposed to condense.
   [1913 Webster]


WordNet (r) 3.0 (2006):

rarefied
    adj 1: having low density; "rare gasses"; "lightheaded from the
           rarefied mountain air" [syn: rare, rarefied,
           rarified]
    2: of high moral or intellectual value; elevated in nature or
       style; "an exalted ideal"; "argue in terms of high-flown
       ideals"- Oliver Franks; "a noble and lofty concept"; "a grand
       purpose" [syn: exalted, elevated, sublime, grand,
       high-flown, high-minded, lofty, rarefied, rarified,
       idealistic, noble-minded]