herc (hertz)
petaherc (petahertz )
teraherc (terahertz)
gigaherc (gigahertz )
megaherc (megahertz )
kiloherc (kilohertz )
hektoherc (hektohertz )
dekaherc (dekahertz )
decyherc (decyhertz )
centyherc (centyhertz )
miliherc (milihertz )
mikroherc (mikrohertz )
nanoherc (nanohertz )
pikoherc (pikohertz )
femtoherc (femtohertz )
attoherc (attohertz )
