megabit

[meg-uh-bit] /ˈmɛg əˌbɪt/
noun, Computers.
1.
2 20 (1,048,576) bits.
2.
(loosely) one million bits.
Abbreviation: Mb.
Origin
1955-60; mega- + bit3
British Dictionary definitions for megabits

megabit

/ˈmɛɡəˌbɪt/
noun (computing)
1.
one million bits
2.
220 bits
megabits in Science
megabit
  (měg'ə-bĭt')   

  1. One million bits.

  2. 1,048,576 (that is, 220) bits. See Note at megabyte.