The Collaborative International Dictionary of English v.0.48:

Academician \Ac`a*de*mi"cian\ (#; 277), n. [F. acad['e]micien.
   See Academy.]
   1. A member of an academy, or society for promoting science,
      art, or literature, as of the French Academy, or the Royal
      Academy of arts.
      [1913 Webster]

   2. A collegian. [R.] --Chesterfield.
      [1913 Webster]

WordNet (r) 3.0 (2006):

academician
    n 1: someone elected to honorary membership in an academy
    2: a scholar who is skilled in academic disputation [syn:
       academician, schoolman]
    3: an educator who works at a college or university [syn:
       academician, academic, faculty member]

Moby Thesaurus II by Grady Ward, 1.0:

30 Moby Thesaurus words for "academician":
   bookman, classicist, clerk, colossus of knowledge, genius,
   giant of learning, humanist, learned clerk, learned man,
   literary man, litterateur, lover of learning, man of learning,
   man of letters, mastermind, mine of information, philologist,
   philologue, philomath, philosophe, philosopher, polyhistor,
   polymath, pundit, savant, scholar, scholastic, schoolman, student,
   walking encyclopedia