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The state or behavior of a parasite; the act of a parasite. "Court parasitism." Milton.

shment; -- said of all plants in which photosynthetic activity takes place, as opposed to parasitism or saprophytism.

ation or even close union of two dissimilar organisms. In a broad sense the term includes parasitism, or antagonistic, or antipathetic, symbiosis, in which the association is disadvantageous or destructive to one of the organisms, but ordinarily it is used of cases where the association is advantageous, or often necess…