Most Significant Bit


most significant bit

[′mōst sig′nif·i·gənt ′bit] (computer science) The left-most bit in a word. Abbreviated msb.

Most Significant Bit

(MSB) Bit n-1 in an n bit binary number, the bit with thegreatest weight (2^(n-1)). The first or leftmost bit when thenumber is written in the usual way.