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catalyst
Automotive; Vehicle equipment
A substance that accelerates a chemical change without actually entering into the chemical reaction. A catalyst usually consists of platinum powder very thinly coated onto carbon ...
Super Glide
Automotive; Motorcycles
A hybrid between the Sportster front end and the frame of the big-twin engine Harley-Davidson's.
tagging up
Sports; Baseball
This is when a base runner waits for an outfielder to catch a fly ball and then leaves the base he is standing on to move to the next base. The base runner can't leave the base he ...