The Collaborative International Dictionary of English v.0.48:

Cyrenian \Cy*re"ni*an\ (s?-r?"n?-an), a.
   Pertaining to Cyrene, in Africa; Cyrenaic.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Cyrenian \Cy*re"ni*an\, n.
   1. A native or inhabitant of Cyrene.
      [1913 Webster]

   2. One of a school of philosophers, established at Cyrene by
      Aristippus, a disciple of Socrates. Their doctrines were
      nearly the same as those of the Epicureans.
      [1913 Webster]