Wiktionary
n. (context nuclear physics English) An ionized atom that is usually heavier than helium.
Usage examples of "heavy ion".
None of these are perfect solutions, particularly against the heavy ion component of the cosmic ray background, however, the one with the most promise is unconfined magnetic shielding—.
Dengar watched as Rebel transports and fighters blasted off from the sur-face of Hoth under the cover of heavy ion cannons, while Star Destroyers scrambled to intercept the Rebels and shoot them down.
He had already pivoted sharply on his remaining tracks and halted, angled across the valley to clear his intact port infinite repeaters' field of fire, and heavy ion bolts shrieked to meet the drones.
I explained about electron degeneracy and heavy ion emission and gas cloud optical depth.