actinium

/รฆkหˆtษชniษ™m/

IPA: /AE0 K T IH1 N IY0 AH0 M/

noun
  1. 1

    A radioactive, metallic chemical element (symbol: Ac) with an atomic number of 89; found in uranium ores

Source: https://en.wiktionary.org/wiki/actinium