"clocking" in the noun sense
1. clocking
the time taken to traverse a measured course
"it was a world record clocking"
"clocking" in the verb sense
1. clock, time
measure the time or duration of an event or action or the person who performs an action in a certain period of time
"he clocked the runners"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License