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.
magnetic - having the properties of a magnet; i.e. of attracting iron or steel; the hard disk is covered with a thin coat of magnetic material magnetised, magnetized antimagnetic - impervious to the effects of a magnetic field; resistant to magnetization; an antimagnetic watch