(George) Iain. born 1954, British politician; leader of the Conservative Party (2001–03); secretary of state for work and pensions (from 2010)
- Duncan I
noun 1. died 1040, king of Scotland 1030–40: murdered by Macbeth. /ˈdʌŋkən/ noun 1. died 1040, king of Scotland (1034–40); killed by Macbeth
/dʌnˈbɑːtənʃɪə; -ʃə/ noun 1. a historical county of W Scotland: became part of Strathclyde region in 1975; administered since 1996 by the council areas of East Dunbartonshire and West Dunbartonshire
[doo-plek-ser, dyoo-] /ˈdu plɛk sər, ˈdyu-/ noun, Electronics. 1. an automatic electronic switching device that permits the use of the same antenna for transmitting and receiving.
- Duplex high speed data
(DHSD) A term which describes a full-duplex channel that can carry 64 kilobits per second. This is the kind of service provided by an Inmarsat-B type portable earth station or a leased line (not ISDN). (1995-02-02)