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1.
An acronym developed on the website College Confidential. It is used to represent the ten most prestigious prep schools. The schools referred to in GLADCHEMMS are:

Groton
Lawrenceville
Andover
Choate
Hotchkiss
Exeter
Milton
Middlesex
St. Paul's
I got accepted by a GLADCHEMMS school.
by HADES prepster February 26, 2011