A|B|C|D|E|F|G|H|I|J|K|L|M|N

O|P|Q|R|S|T|U|V|W|X|Y|Z|α-ω

**k**: Boltzmann’s constant: appears in → Boltzmann distribution.
**kHz** → Kilohertz.
**Kilohertz (kHz)**: unit of frequency; equal to one thousand Hertz.
**k-Space**: auxiliary mathematical space whose coordinates are frequency and phase as opposed to spatial coordinates
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