random access memory

Short definition from Wiktionary

Noun

1. 1
   Computer memory, usually volatile, that stores program and data values during operation and in which each word of memory may be directly (randomly) accessed.
2. 2
   Computer memory, usually volatile, that stores program and data values during operation and in which each word of memory may be directly (randomly) accessed: Main memory.
3. 3
   Alternative form of random access memory.