Definition of reionize in US English:

reionize

(also reionise)

verb

Physics
  • 1no object To undergo reionization; to become ionized again.

  • 2with object To cause to undergo reionization; to ionize again.

Origin

Early 20th century. From re- + ionize, after reionization.

Pronunciation

reionize

/ˌriːˈʌɪənʌɪz/