Meaning: Able to withstand attack. Synonyms: unassailable; unattackable; impregnable; inviolable; secure; strong. Context examples: an impregnable fortress / fortifications that made the frontier inviolable. Similar: invulnerable (immune to attack; impregnable)
Definition - What does Magnetic Disk mean? A magnetic disk is a storage device that uses a magnetization process to write, rewrite and access data. It is covered with a magnetic coating and stores data in the form of tracks, spots and sectors. Hard disks, zip disks and floppy disks are common examples of magnetic disks.
removable disk (a hard disk that can be removed from the disk drive; removal prevents unauthorized use). Holonyms (hard disk is a part of...): disc drive; disk drive; hard drive; Winchester drive (computer hardware that holds and spins a magnetic or optical disk and reads and writes information on it).