16-letter words containing o, a, s, i, f, c
- subjectification — to make subjective.
- sulfocarbanilide — thiocarbanilide.
- superfecundation — the fertilization of two or more ova discharged at the same ovulation by successive acts of sexual intercourse.
- superunification — a theory intended to describe the electromagnetic force, the strong force, the weak force, and gravity as a single, unified force.
- velcro fastening — a fastening made of Velcro
- war of secession — American Civil War.