roent·gen·i·um 
(rĕnt-gĕnē-əm, -jĕn- rŭnt-, rœnt-gen-)
(rĕnt-gĕnē-əm, -jĕn- rŭnt-, rœnt-gen-)n. Symbol Rg
An artificially produced radioactive element with atomic number 111 that has only been produced in trace amounts. Its most stable known isotope has a mass number of 280 and a half-life of 3.6 seconds. See Periodic Table.
[After Wilhelm Conrad Roentgen.]
- Indo-European root: deuk-
- Indo-European root: deuə-
- Indo-European root: dhegwh-
- Indo-European root: dheigh-
- Indo-European root: dher-
- Indo-European root: dhers-
- Indo-European root: dheu-
- Indo-European root: dheu-
- Indo-European root: dheub-
- Indo-European root: dheugh-
- Indo-European root: dheuə-
- Indo-European root: dhghem-
- Indo-European root: dhgh(y)es-
- Indo-European root: dhreg-
- Indo-European root: dhreibh-
- Indo-European root: dhreu-
- Indo-European root: dhugəter-
- Indo-European root: dhwer-
- Indo-European root: dhē-
- Indo-European root: dhē(i)-
- Indo-European root: dhēs-
- Indo-European root: dhīgw-
- Indo-European root: dlegh-
- Indo-European root: dn̥ghū-
- Indo-European root: dus-