dulling

This happens whenever more than ten people want to read from their work, as even ten minutes for reading and five for discussion can add up to one long evening and a certain dulling of the powers of concentration once the second hour has passed.

The Writers’ Group « Tales from the Reading Room 2008

The loss of the original keenness (dressed keenness) of the tool cutting edge and the outer comers in the process of cutting is called dulling, its result is called wear.

6. Basic Terms of Cutting Dieter Zemmrich 1993

There also seems to be a "dulling" of the power to perceive an odour which is a consequence of constant exposure to that odour.

More Science From an Easy Chair 1888

The major downside of soap, however, was that it left hair coated with a discouraging, dulling film.

The English Is Coming! Leslie Dunton-Downer 2010

The major downside of soap, however, was that it left hair coated with a discouraging, dulling film.

The English Is Coming! Leslie Dunton-Downer 2010

Through my friends and through my writing, I found myself again, and time became my ally in dulling what my loved ones and writing could not.

Chicken Soup for the Soul: Grieving and Recovery Jack Canfield 2011

U.S. carriers in recent years notched the best safety record in history, further dulling the incentive to spend on pricey safety options.

Manufacturers Tout Safety in Cockpit Andy Pasztor 2011

I fear this has had the long-term effect of dulling my game.

Get Laid or Die Trying Jeff Allen 2011

The orgasm and the heady feeling of wholeness rushed over his senses, dulling the panic and fear.

Rogue Oracle 2011

I knew that the heated “almost-pain” was dulling into a nice buzz.

Arcane Circle Linda Robertson 2011