co-ed vs crossbred

co-ed

adj

Of any location, that mixes males and females.
Of an educational institution, that teaches both males and females.

crossbred

adj

Produced by breeding from two breeds, varieties or species.

noun

Any organism produced by breeding from two breeds, varieties, or species.

How often have the words co-ed and crossbred occurred in a corpus of books? (source: Google Ngram Viewer )