Taber's Medical Dictionary
thallium
(thal′ē-ŭm )
To hear audio pronunciation of this topic, purchase a subscription or log in.[Gr. thallos, a young shoot + -ium (1)]
SYMB: Tl A metallic element, atomic weight (mass) 204.37, atomic number 81, specific gravity 11.85. Its salts may be poisonous in overdose; its radioisotope is used to assess myocardial perfusion and viability.
CAS # 7440-28-0
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Citation
Venes, Donald, editor. "Thallium." Taber's Medical Dictionary, 25th ed., F.A. Davis Company, 2025. Taber's Online, www.tabers.com/tabersonline/view/Tabers-Dictionary/756193/0/thallium.
Thallium. In: Venes DD, ed. Taber's Medical Dictionary. F.A. Davis Company; 2025. https://www.tabers.com/tabersonline/view/Tabers-Dictionary/756193/0/thallium. Accessed April 20, 2026.
Thallium. (2025). In Venes, D. (Ed.), Taber's Medical Dictionary (25th ed.). F.A. Davis Company. https://www.tabers.com/tabersonline/view/Tabers-Dictionary/756193/0/thallium
Thallium [Internet]. In: Venes DD, editors. Taber's Medical Dictionary. F.A. Davis Company; 2025. [cited 2026 April 20]. Available from: https://www.tabers.com/tabersonline/view/Tabers-Dictionary/756193/0/thallium.
* Article titles in AMA citation format should be in sentence-case
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T1 - thallium
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ED - Venes,Donald,
BT - Taber's Medical Dictionary
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PB - F.A. Davis Company
ET - 25
DB - Taber's Online
DP - Unbound Medicine
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