/euh klok"/ , adv.
1. of, by, or according to the clock (used in specifying the hour of the day): It is now 4 o'clock.
2. according to a method for indicating relative position whereby a plane in space is considered to be numbered as a clock's face, with 12 o'clock considered as directly ahead in horizontal position or straight up in vertical position.
[ 1710-20; see O', CLOCK 1 ]