NOUN (1)

1. a resident or native of Alexandria (especially Alexandria in Egypt);


ADJECTIVE (1)

1. of or relating to Alexander the Great or his empire;

The Collaborative International Dictionary of English v.0.48:

Alexandrian \Al`ex*an"dri*an\, a.
   1. Of or pertaining to Alexandria in Egypt; as, the
      Alexandrian library.
      [1913 Webster]

   2. Applied to a kind of heroic verse. See Alexandrine, n.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Alexandrian
    adj 1: of or relating to Alexander the Great or his empire
    n 1: a resident or native of Alexandria (especially Alexandria
         in Egypt)