A short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
Noun
a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
Usage Examples
protactinium, oprotactinium, 0protactinium, lprotactinium, orotactinium, 0rotactinium, lrotactinium, porotactinium, p0rotactinium, plrotactinium, perotactinium, p4rotactinium, p5rotactinium, ptrotactinium, pfrotactinium, peotactinium, p4otactinium, p5otactinium, ptotactinium, pfotactinium, preotactinium, pr4otactinium, pr5otactinium, prtotactinium, prfotactinium, priotactinium, pr9otactinium, pr0otactinium, prpotactinium, prlotactinium, pritactinium, pr9tactinium, pr0tactinium, prptactinium, prltactinium, proitactinium, pro9tactinium, pro0tactinium, proptactinium, proltactinium, prortactinium, pro5tactinium, pro6tactinium, proytactinium, progtactinium, proractinium, pro5actinium, pro6actinium, proyactinium, progactinium, protractinium, prot5actinium, prot6actinium, protyactinium, protgactinium, protqactinium, protwactinium, protsactinium, protzactinium, protqctinium, protwctinium, protsctinium, protzctinium, protaqctinium, protawctinium, protasctinium, protazctinium, protaxctinium, protadctinium, protafctinium, protavctinium, prota ctinium, protaxtinium, protadtinium, protaftinium, protavtinium, prota tinium, protacxtinium, protacdtinium, protacftinium, protacvtinium, protac tinium, protacrtinium, protac5tinium, protac6tinium, protacytinium, protacgtinium, protacrinium, protac5inium, protac6inium, protacyinium, protacginium, protactrinium, protact5inium, protact6inium, protactyinium, protactginium, protactuinium, protact8inium, protact9inium, protactoinium, protactjinium, protactkinium, protactunium, protact8nium, protact9nium, protactonium, protactjnium, protactknium, protactiunium, protacti8nium, protacti9nium, protactionium, protactijnium, protactiknium, protactibnium, protactihnium, protactijnium, protactimnium, protacti nium, protactibium, protactihium, protactijium, protactimium, protacti ium, protactinbium, protactinhium, protactinjium, protactinmium, protactin ium, protactinuium, protactin8ium, protactin9ium, protactinoium, protactinjium, protactinkium, protactinuum, protactin8um, protactin9um, protactinoum, protactinjum, protactinkum, protactiniuum, protactini8um, protactini9um, protactinioum, protactinijum, protactinikum, protactiniyum, protactini7um, protactini8um, protactiniium, protactinijum, protactiniym, protactini7m, protactini8m, protactiniim, protactinijm, protactiniuym, protactiniu7m, protactiniu8m, protactiniuim, protactiniujm, protactiniunm, protactiniujm, protactiniukm, protactiniu,m, protactiniu m, protactiniun, protactiniuj, protactiniuk, protactiniu,, protactiniu , protactiniumn, protactiniumj, protactiniumk, protactinium,, protactinium .