thallous

[thal-uh s]

adjective Chemistry.

containing univalent thallium.

Also thal·li·ous

[thal-ee-uh s] /ˈθæl i əs/.

Origin of thallous

First recorded in 1885–90; thall(ium) + -ous

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for thallous

Historical Examples of thallous

On allowing the liquid to stand for some time a bright yellow precipitate of thallous iodide separates out.
A Textbook of Assaying: For the Use of Those Connected with Mines.
Cornelius Beringer and John Jacob Beringer
The precipitate is thallous iodide TlI, and contains 61.6 per cent.
A Textbook of Assaying: For the Use of Those Connected with Mines.
Cornelius Beringer and John Jacob Beringer

British Dictionary definitions for thallous

thallous

adjective

of or containing thallium, esp in the monovalent state

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012