thallium
n. பகாத் தாவர மேனி, வேர்-தண்டு-இலை எனப் பாகுபடாத தாவர முழுமை.n. வாலிமம், 1க்ஷ்61-இல் கண்டுணரப்பட்ட அரிய மென்மைவாய்ந்த வெண்ணிற உலோகத் தனிமம்.
Thal"li*um, n. Etym: [NL., fr. Gr. green line in its spectrum.] (Chem.) Defn: A rare metallic element of the aluminium group found in some minerals, as certain pyrites, and also in the lead-chamber deposit in the manufacture of sulphuric acid. It is isolated as a heavy, soft, bluish white metal, easily oxidized in moist air, but preserved by keeping under water. Symbol Tl. Atomic weight 203.7. Thal"li*um, n. Etym: [NL., fr. Gr. green line in its spectrum.] (Chem.) Defn: A rare metallic element of the aluminium group found in some minerals, as certain pyrites, and also in the lead-chamber deposit in the manufacture of sulphuric acid. It is isolated as a heavy, soft, bluish white metal, easily oxidized in moist air, but preserved by keeping under water. Symbol Tl. Atomic weight 203.7.