13-letter words containing a, f, t, c
- x-certificate — a film classification indicating a film that may not be publicly shown to anyone under 18. Since 1982 replaced by symbol 18
- yuppification — The act or process of yuppifying.
- zeeman effect — the dividing of a spectral line or lines as a result of placing a radiation source in a magnetic field. The division consists of three equally spaced lines (normal Zeeman effect) in systems for which the spin quantum number is zero, or of three or more unequally spaced lines (anomalous Zeeman effect) in systems for which the spin quantum number is not zero.
- zincification — the act or process of coating or plating with zinc
- zombification — The act or process of zombifying.