UDC
UDC primarily refers to the Universal Decimal Classification system used in libraries, but also denotes the University of the District of Columbia and, in engineering, up/down converters for signal processing.
Medical
Miscellaneous
U Dumb Cluck!
United Doberman Club
Uniform Distribution Center
Universal Data Collection
Usage Data Collector
Urbana Daily Citizen
Utila Dive Centre
User Defined CaTCHER
Universidade da Coruña
Unlawful Discrimination Claim
Community
Urban District Committee
Urban District Council
United Daughters of the Confederacy
Union for Democratic Communications
Unit Disciplinary Committee
Governmental
Uniform Document Count
Unified Development Code
Unit Descriptor Code
Urban Driving Cycle
Upper Division Clerk
International
Academic & Science
University of the District of Columbia
Universal Decimal Classification
Universal Charger/Conditioner
Up/Down Converter
Regional
Computing
Universal Digital Channel
User Defined Command
User Defined Codes
Universal Disk Controller
User Defined Change
Adobe Acrobat Spelling File
Universal Domain Controller
Utility Data Center