different between dirtying vs adulteration

English

dirtying

dirtying (plural dirtyings)

A soiling or making dirty.
- 1982, Gershon Legman, No Laughing Matter: An Analysis of Sexual Humor
  Once understood, not as the venereal-disease jokes they pretend to be, but as food-dirtyings and fecal dirtyings in the attempt to defile the image of the hidden mother, these jokes do not really seem very frightening, or even disgusting, […]

adulteration (plural adulterations)

The action of adulterating, being mixed with extraneous material, illicit substitution of one substance for another.

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