Definition of thallium
: a soft poisonous metallic element that resembles lead in physical properties, occurs sparsely in a number of common ores, and is used chiefly in the form of compounds especially in photosensitive devices and formerly as a pesticide — see element table
Recent Examples of thallium from the Web
One of Koremlu’s active ingredients was thallium acetate.
Yes, Dr. Li had specialized knowledge and access to thallium but as a Joann Curley proves, such training isn’t really necessary for a determined killer.
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Origin and Etymology of thallium
New Latin, from Greek thallos green shoot; from the bright green line in its spectrum
First Known Use: 1861See Words from the same year
Seen and Heard
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