hertz 
(hûrts)
(hûrts)n. pl. hertz Abbr. Hz
A unit of frequency equal to one cycle per second. See Table at measurement.
[After Heinrich Rudolf Hertz.]
- programmed
- programmed cell death
- programmed instruction
- programmer
- programming
- programming language
- program music
- program trader
- program trading
- progress
- progression
- progressional
- progressive
- progressive education
- progressively
- progressiveness
- Progressive Party
- progressivism
- progressivist
- progressivistic
- progressivity
- proguanil
- prohibit
- prohibition
- prohibitionism