Lasting or remaining without essential change.
Permanent, from M.Fr. permanent, from L. permanentem "remaining," pr.p. of permanere "endure, continue, stay to the end," from per- "through" + manere "stay," cognate with Pers. mândan, as below; → gas.
Fr.: gaz permanent
Gas which cannot be liquefied by pressure alone; gas above its critical temperature.
Fr.: aimant permanent
A piece of magnetic material which, having been magnetized, retains a substantial proportion of its magnetization indefinitely.
Fr.: mémoire permanente
Storage capacity which does not depend on a continuous supply of power, e.g. disks, magnetic tapes, etc.