Word Study
twelfth night |
twelfth part |
twelfth-cake |
twelfth-day |
twelfth-night |
twelfth-second
| twelfthtide
| twelve
| twelve noon
| twelve tribes of israel
| twelve-sided
twelfth-second
CIDE DICTIONARY
twelfth-second, n.
A unit for the measurement of small intervals of time, such that 1012 (ten trillion) of these units make one second. [1913 Webster]
For further exploring for "twelfth-second" in Webster Dictionary Online