gigabit

[gig-uh-bit, jig-] /ˈgɪg əˌbɪt, ˈdʒɪg-/
noun, Computers.
1.
a measure of storage capacity and data transfer equal to 1 billion (10 9) bits.
Origin
1965-70; giga- + bit3
British Dictionary definitions for gigabits

gigabit

/ˈɡɪɡəˌbɪt; ˈɡaɪɡəˌbɪt/
noun
1.
(computing) one million bits
gigabits in Science
gigabit
  (gĭg'ə-bĭt')   
  1. One billion bits.

  2. 1,073,741,824 (that is, 230) bits. See Note at megabyte.