radiationist noun2 •(nonstandard, rare) One whose (medical or scientific) profession is to apply radiation or radioactive material (to someone or something).Soon after the new scheme begins, another four professions will be added including; Aboriginal health workers, Chinese Medicine practitioners, medical radiationists and occupational therapists. — 2009 •(rare) One who believes in or claims to practice extrasensory perception by sensing radiation. formsradiationists
