Roll cage, a specially constructed frame built in or around the cab of a vehicle to protect the occupants from being injured in an accident
Shark proof cage, a cage in which a SCUBA diver enters to examine sharks better and more safely
High throughput genomics techniques
CAGE: http://www.pnas.org/cgi/content/full/100/26/15776 (CAGE article in PNAS), cap analysis gene expression (CAGE). CAGE allows high-throughout gene expression analysis and the profiling of transcriptional start points (TSP), including promoter usage analysis.