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(Elements & Compounds) of or containing antimony in the trivalent state
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈæn tə mə nəs, -ˌmoʊ nəs)

also an•ti•mo•ni•ous

(ˌæn təˈmoʊ ni əs)

of or containing antimony, esp. in the trivalent state.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
For the next hundred years, the application of such yellow colourants (iron oxide) continued, until the Qing emperors began to favour the production of antimonous oxide yellow ware during the 18th century.
The ethylenediaminetetraacetic acid and antimonous oxide were purchased from Shanghai Reagent Industry.
Then, 0.875 g (3 mmol) antimonous oxide was gradually added to the above solution, stirring and maintaining the temperature at 90[degrees]C.