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Medical devices
Any instrument, appliance or machine that facilitates the prevention,diagnosis and treatment of illness, physical or mental injury, by a medical professional.
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substitutions
Sports; Baseball
One player can be substituted for another player but the player who is taken out of the game is not allowed to return.
most active list
Financial services; General Finance
The stocks with the highest volume of trading on a certain day.
Variable Ratio Write
Financial services; General Finance
An option strategy in which the investor owns 100 shares of the underlying security and writes two call options against it, each option having a different striking price.
switchback
Sports;
a turn sharper than 90 degrees. Switchbacks are found mainly on hills that are too steep to be ascended (or descended) using a direct path.