v. inch. n. [rarus], to grow thin , lose its density , to become rare , be rarefied poet.

http://lila-erc.eu/data/lexicalResources/LewisShort/id/LexicalSense/n40424.0 an entity of type: LexicalSense

v. inch. n. [rarus], to grow thin , lose its density , to become rare , be rarefied poet. 
v. inch. n. [rarus], to grow thin , lose its density , to become rare , be rarefied poet. 

data from the linked data cloud