Home Remedies for Whiter Teeth. Some people still prefer the age-old home remedy of baking soda and a toothbrush to gently whiten teeth at home. Also, some foods such as celery, apples, pears, and carrots trigger lots of saliva, which helps wash away food debris on your teeth.
Roche limit. n. The smallest distance at which a natural satellite can orbit a celestial body without being torn apart by the larger body's gravitational force. The distance depends on the densities of the two bodies and the orbit of the satellite.
stop-limit order. A specialized order in which a limit order and a stop order are combined. Once the specified stop price has been reached or exceeded, the stop-limit order becomes a limit order. A stop-limit order differs from a stop order, which becomes a market order when the stop price has been reached or exceeded.