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.
A KB (kilobyte) is 1000 bytes, an MB (megabyte) is 1000 kilobytes, a GB (gigabyte) is 1000 megabytes, a TB (terabyte) is 1000 gigabytes, you get the pattern. After terabyte is petabyte, pettabyte is exabyte, exabyte is zettabyte and zettabyte is yottabyte. That's the last prefix we have right now.