P3H4O1T1O1I1O1N1I1Z10E1S1
26 points
PHOTOIONIZES is validvalid
PHOTOIONIZE, to ionize under the influence of light
PHOTOIONIZE, to ionize by electromagnetic radiation, also PHOTOIONISE
PHOTOIONIZE, to ionize under the influence of light
PHOTOIONIZE, to ionize by electromagnetic radiation, also PHOTOIONISE