Meaning of Carnegie unit

Car'negie u"nit

Pronunciation: [key]
— Educ. Educ.
  1. a standardized unit of measurement for evaluating courses in secondary schools in terms of college entrance requirements, representing one year's study in any subject, that subject having been taught for a minimum of 120 classroom hours to qualify.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.