The Collaborative International Dictionary of English v.0.48:

Lector \Lec"tor\ (l[e^]k"t[o^]r), n. [L. See Lection.] (Eccl.)
   A reader of lections; formerly, a person designated to read
   lessons to the illiterate.
   [1913 Webster]

WordNet (r) 3.0 (2006):

lector
    n 1: someone who reads the lessons in a church service; someone
         ordained in a minor order of the Roman Catholic Church
         [syn: lector, reader]
    2: a public lecturer at certain universities [syn: lector,
       lecturer, reader]

Moby Thesaurus II by Grady Ward, 1.0:

50 Moby Thesaurus words for "lector":
   Bible clerk, Bible reader, acolyte, acolytus, almoner, anagnost,
   beadle, bedral, capitular, capitulary, choir chaplain,
   churchwarden, clerk, deacon, deaconess, diaconus, doorkeeper,
   elder, elderman, exorcist, exorcista, holy orders, homilist,
   lay elder, lay reader, lecturer, major orders, minor orders,
   ostiarius, parish clerk, praelector, preacher, precentor,
   presbyter, priest, reader, ruling elder, sacrist, sacristan,
   sexton, shames, sidesman, subdeacon, subdiaconus, succentor,
   suisse, teaching elder, thurifer, verger, vergeress