- cachaemiaA degenerated or poisoned condition of the blood.
- caco-bad, defective
- cacochymiaA vitiated state of the humours, or bodily fluids.
- cacoepyThe mispronunciation of words.
- caconymAn incorrect name for something, especially in taxonomic classification.
- cacophobiaThe fear of ugliness or ugly people.
- cacosynthetonThe poor placement of words.
- cacothymiaAn unbalanced state of mind; a mental or glandular disorder as from a malfunctioning thymus gland.
- cacoxeniteA soft phosphate of iron occurring in yellowish clumps: hydrated iron aluminum phosphate oxide: (Fe,Al)₂₅(PO₄)₁₇O₆(OH)₁₂·17H₂O.
- kakocracyRule or government by the worst of the people.