Definitions for "American option"
An option which can be exercised at any time between the purchase date and the...
An option whose holder can exercise the option anytime before its expiry.
An option which can be exercised at the strike price at anytime before the expiry date.... more on: American option
Keywords:  agreed, future, buy, sell, defined
Is a right, to buy or sell some asset over some defined period of time in the future for a price that is agreed upon now.