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stannous

American

[stan-uhs] / ˈstæn əs /

adjective

Chemistry.

containing tin, especially in the bivalent state.

stannous British

/ ˈstænəs /

adjective

of or containing tin, esp in the divalent 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

stannous Scientific

/ stăn′əs /

Containing tin, especially tin with a valence of 2.
Compare stannic

Etymology

Origin of stannous

First recorded in 1840–50; stann(um) + -ous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For example, you may see the words stannous fluoride on a tube of toothpaste.

From Textbooks • Feb. 14, 2019

A technician spends three to five minutes air-drying his teeth and applying a 10% stannous fluoride solution.

From Time Magazine Archive

First, each patient is given a basin, a toothbrush, a small cup of pumice paste containing stannous fluoride, and a five-minute lecture on how to proceed.

From Time Magazine Archive

Third, the patient gets up to 15 minutes of instruction in how to make daily use of the stannous fluoride toothpaste, which the Navy recommends.

From Time Magazine Archive

If the stannous chloride is in excess, the reaction may go further, producing metallic mercury: SnCl2 + 2HgCl = SnCl4 + 2Hg.

From An Elementary Study of Chemistry by McPherson, William

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023