Definition:
Parasitism is a noun that describes a relationship between two different types of living organisms. In this relationship, one organism, called the parasite, benefits by getting something it needs from the other organism, called the host. The host usually suffers in some way, but the damage is often not fatal, meaning the host does not die.
In scientific contexts, you might encounter discussions about different types of parasitism, such as: - Ectoparasitism: Parasites that live on the exterior of the host (e.g., ticks, fleas). - Endoparasitism: Parasites that live inside the host (e.g., tapeworms).
While "parasitism" primarily refers to the biological context, it can also be used metaphorically in social or economic discussions. For example, one might describe a person or organization that takes advantage of others without giving anything in return as exhibiting "parasitism."
There are no direct idioms or phrasal verbs that include "parasitism," but you might encounter phrases like: - "Leech off someone": To take advantage of someone’s resources or kindness without giving anything back. This is a more casual way to describe a parasitic relationship.
In summary, parasitism is an important concept in biology that explains a specific type of relationship between organisms where one benefits at the expense of the other.