TWELFTH-SECOND
Source: 567
Twelfth″–sec′ond (?), n. (Physics) A unit for the measurement of small intervals of time, such that 1012 (ten trillion) of these units make one second.
Source: 567
Twelfth″–sec′ond (?), n. (Physics) A unit for the measurement of small intervals of time, such that 1012 (ten trillion) of these units make one second.