Wiktionary (0.00 / 0 votes) Rate this definition: ignorant (Adjective). Unknowledgeable or uneducated; characterized by ignorance. ignorant (Adjective). Ill-mannered, crude. His manner was at best off-hand, at worst totally ignorant.
1 Megabyte (MB), a measure of amount of information used, for example, to quantify computer memory or storage capacity. 2  Megabit (Mb, or properly: Mbit), a measure of amount of information.  MikroBitti (formerly MB), a Finnish computer magazine.
Megabyte. Abbreviated as meg or mbit, MB is short for megabyte. An MB is a measurement used with computer storage media that can equal to 1,048,576 (2 20) bytes or 1,000,000 (10 6) bytes depending on the manufacturer of a hardware device or the developer of software.Tip: When the b is lowercase (Mb), this refers to a megabit.n MB is a measurement used with computer storage media that can equal to 1,048,576 (2 20) bytes or 1,000,000 (10 6) bytes depending on the manufacturer of a hardware device or the developer of software. Tip: When the b is lowercase (Mb), this refers to a megabit.