monothallious, a. Chem.
(mɒnəʊˈθælɪəs)
[mono- 2.]
Applied to thallious salts which contain one equivalent of thallium.
| 1868 Watts Dict. Chem. V. 755 The monothallious salt TlH2PO4, is formed on mixing the dithallious salt with [etc.]. 1873 Fownes' Chem. (ed. 11) 413 Monothallious orthophosphate. |