parasitism

As nouns the difference between taxonomy and parasitism

is that taxonomy is the science or the technique used to make a classification while parasitism is interaction between two organisms, in which one organism (the parasite) benefits and the other (the host) is harmed.

As a noun parasitism is

(ecology) interaction between two organisms, in which one organism (the parasite) benefits and the other (the host) is harmed.

As a noun parasitism

is interaction between two organisms, in which one organism (the parasite) benefits and the other (the host) is harmed.

As an adjective holoparasitic is

of or pertaining to a plant sustaining itself entirely through parasitism.