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Webster 1913 Edition
Prelector
Pre-lec′tor
,Noun.
 [L. 
praelector
.] A reader of lectures or discourses; a lecturer. 
Sheldon.
 Webster 1828 Edition
Prelector
PRELEC'TOR
,Noun.
  Definition 2025
prelector
prelector
English
Noun
prelector (plural prelectors)
-  A reader of lectures or discourses; a lecturer.
- (Can we find and add a quotation of Sheldon to this entry?)