Declining p. pr. & vb. n. : of Decline

Example:
Why or how would Declining health in a spouse?

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Defination from the web:
declining from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... to the period during which something is deteriorating or nearing its end <her declining years> Learn more about "declining" with Google Search: ...