ell: πρωτακτίνιο

Information
has URI	http://lexvo.org/id/term/ell/%CF%80%CF%81%CF%89%CF%84%CE%B1%CE%BA%CF%84%CE%AF%CE%BD%CE%B9%CE%BF

Meaning
means	(noun) a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead Pa, protactinium, atomic number 91, protoactinium