Noun | 1.GB - a highly toxic chemical nerve agent that inhibits the activity of cholinesterasesarinorganophosphate nerve agent - any of a series of nerve agents containing organophosphate compounds first synthesized by German chemists in 1936; in World War II the Germans tested them in concentration camps but not on the battlefield; Iraq is alleged to have used them against Iran and against the Kurds | | 2.Gb - a unit of magnetomotive force equal to 0.7958 ampere-turnsGi, gilbertmagnetomotive force unit - a unit of measurement of magnetomotive force | | 3.Gb - a unit of information equal to 1000 megabits or 10^9 (1,000,000,000) bitsGbit, gigabitcomputer memory unit - a unit for measuring computer memoryMb, Mbit, megabit - a unit of information equal to 1000 kilobits or 10^6 (1,000,000) bitsTbit, terabit, Tb - a unit of information equal to 1000 gigabits or 10^12 (1,000,000,000,000) bits | | 4. GB - a unit of information equal to 1000 megabytes or 10^9 (1,000,000,000) bytesgigabyte, Gcomputer memory unit - a unit for measuring computer memorymegabyte, MB, M - a unit of information equal to 1000 kilobytes or 10^6 (1,000,000) bytesterabyte, TB - a unit of information equal to 1000 gigabytes or 10^12 (1,000,000,000,000) bytes | | 5.GB - a unit of information equal to 1024 mebibytes or 2^30 (1,073,741,824) bytesGiB, gibibyte, gigabyte, Gcomputer memory unit - a unit for measuring computer memorymebibyte, MiB, megabyte, MB, M - a unit of information equal to 1024 kibibytes or 2^20 (1,048,576) bytestebibyte, TiB, terabyte, TB - a unit of information equal to 1024 gibibytes or 2^40 (1,099,511,627,776) bytes | | 6. GB - an island comprising England and Scotland and WalesGreat BritainBritish Isles - Great Britain and Ireland and adjacent islands in the north AtlanticBritain, Great Britain, U.K., UK, United Kingdom, United Kingdom of Great Britain and Northern Ireland - a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United KingdomScotland - one of the four countries that make up the United Kingdom of Great Britain and Northern Ireland; located on the northern part of the island of Great Britain; famous for bagpipes and plaids and kiltsSolway Firth - a large firth on the west coast of Britain between England and ScotlandBrit, Britisher, Briton - a native or inhabitant of Great Britain |