Of tin with a valence of two; of tin(II)Compare with stannic
- ‘For example, sodium fluoride, calcium fluoride, and stannous fluoride are all used to help reduce tooth decay.’
- ‘Tranexamic acid, D-gluconic acid (hemicalcium salt), dithiothreitol, and stannous chloride were purchased from Sigma (St. Louis, MO).’
- ‘Reduction with stannous chloride alone allowed for selective reduction of inorganic mercury.’
Mid 19th century: from late Latin stannum tin + -ous.