If a product contains bleach (peroxide), it will whiten your teeth. But not all treatments are created equal. It's the concentration or percent of hydrogen peroxide a teeth-whitening system contains and the amount of time it's in contact with your teeth that determines its effectiveness.
Definition of fecund - producing or capable of producing an abundance of offspring or new growth; highly fertile Definition of fecund - producing or capable of producing an abundance of offspring or new growth; highly fertile
The term pecuniary refers to something paid or given in money, or a monetary interest in something. For example, a person who owns stock in a company is said to have a pecuniary interest in the company, because his investment, loss, and gains can be measured in dollars.