flash memory

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Nonvolatile random access memory that can be erased electronically and rewritten up to 100,000 times. It is smaller, lighter, and more energy efficient than a hard drive, making it particularly useful in handheld devices.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun computer hardware A rewritable memory chip that retains its data without a power supply.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun nonvolatile storage that can be electrically erased and programmed anew