Commerce Clearing House 
Computerized Criminal History 
Connections Per Circuit Hour 
Cable, Crimping and Harnessing 
CHANNEL-CHECK HANDLER 
Chief of Chaplains 
Close Combat Heavy 
Control CHannel 
Crew Communication Headset 
Bench Show Champion 
Cache Creek High 
Cadet College Hasan 
Calcium Chloride Hexahydrate 
CAMPBELL RESOURCES, INC. 
Canadian College of Homeopathy 
canine cutaneous histiocytoma 
Cape Cod and Hyannis Railroad 
carbachol 
carbacholine 
carbamoylcholine 
carbamylcholine 
carbamylcholine chloride 
C-cell hyperplasia 
Center City High 
Center for Cryptologic History 
Central Coast High 
Centre for Computing in the Humanities 
Certified Clinical Hypnotherapist 
Certified in Classical Homeopathy 
chronic chloride hemagglutination