the femtosecond
The smallest units of matter are the subatomic particles.
Morphemes are the smallest units of meaning in a language, while phonemes are the smallest units of sound in a spoken language.
In physics, the Planck time (tP) is the unit of time in the system of natural units. Theoretically, this is the smallest time measurement that will ever be possible.
Cells are the smallest.
cells
Cells.
Meme
Cities and Municipalities are the smallest units of local government, but here in the Philippines, barangays are the smallest units.
Atoms are the smallest units of an element. Molecules are the smallest unit of a compound.
The cell is the smallest living unit in the body.
cellular level
No, a terasecond is not the smallest unit of time. In fact, a terasecond is equal to (10^{12}) seconds, which is quite large in comparison to smaller units like the picosecond ((10^{-12}) seconds) and the femtosecond ((10^{-15}) seconds). Therefore, there are many smaller units of time than a terasecond.