Meaning of locus classicus*

lo•cus clas•si•cus

Pronunciation: (lō'koos kläs'si-koos" Eng. lō'k&schwas klas'i-k&schwas), [key]
— pl. lo•ci clas•si•ci
  1. classical source: a passage commonly cited to illustrate or explain a subject or word.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.