What does cusp stand for?

Cuspid - Dentistry (DAVI)

Central United States Partnership - Emergency Management (EMA)

Central Unit for Scientific Photography - Royal Aircraft Establishment - British

Commercial User Spooler - Computer science (HODG)

Commonly Used System Programs - Digital Equipment Corp.

Comprehensive US Sustainable Population (FLAA)

Customer Programming Language (SAUS)

Cyclotron Up-Scattering Process (SAUS)