GB

/ˈdʒi ˌbi/

Definitions of GB

1. noun

   a unit of information equal to 1000 megabytes or 10^9 (1,000,000,000) bytes
   synonyms: G, gigabyte

   type of:

   computer memory unit

   a unit for measuring computer memory
2. noun

   a unit of information equal to 1024 mebibytes or 2^30 (1,073,741,824) bytes
   synonyms: G, GiB, gibibyte, gigabyte

   type of:

   computer memory unit

   a unit for measuring computer memory
3. noun

   an island comprising England and Scotland and Wales
   synonyms: Britain, Great Britain

   examples:

   Albion

   archaic name for England or Great Britain; used poetically

   example of:

   island

   a land mass (smaller than a continent) that is surrounded by water
4. noun

   a highly toxic chemical nerve agent that inhibits the activity of cholinesterase
   synonyms: sarin

   type of:

   organophosphate 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