Definition of stannous in English:


Syllabification: stan·nous
Pronunciation: /ˈstanəs


  • Of tin with a valence of two; of tin(II). Compare with stannic.
    More example sentences
    • For example, sodium fluoride, calcium fluoride, and stannous fluoride are all used to help reduce tooth decay.
    • Reduction with stannous chloride alone allowed for selective reduction of inorganic mercury.
    • Tranexamic acid, D-gluconic acid (hemicalcium salt), dithiothreitol, and stannous chloride were purchased from Sigma (St. Louis, MO).


mid 19th century: from late Latin stannum 'tin' + -ous.

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