使し用ようメモリMeanings1nounmemory used; used memorycomputing›Computing term referring to the amount of memory currently in use by a system or application.タスクマネージャーで使し用ようメモリを確かく認にんする。Check the memory used in Task Manager.このアプリの使し用ようメモリが急きゅうに増ふえた。The memory used by this app suddenly increased.