T1H4A1L1L1I1U1M3
13 points
THALLIUM is validvalid
a metallic element [n THALLIUMS] : THALLOUS [adj]
a rare bluish-white metallic chemical element [n -S]
a metallic element [n THALLIUMS] : THALLOUS [adj]
a rare bluish-white metallic chemical element [n -S]