1. a throw or cast directed downward
2. in geology, the side of a fault where rock has moved downward relative to the other side
Usage: technical; geology

1. to throw or cast downward

Examples

• The pitcher's downthrow caught the runner off guard.
• The geologist identified the downthrow of the fault by examining the displaced rock layers.
• He made a downthrow from the platform to the ground below.
• The fault's downthrow created a visible step in the landscape.
• She downthrew the rope to the climber waiting below.