Semiparasitic is a term used to describe an organism that partially depends on another organism for survival. Some synonyms for this term include semi-dependent, half-dependent, partially parasitic, partially reliant, and semi-symbiotic. Other synonyms for semiparasitic may include commensal, where one organism benefits without harming the other, and facultative, where an organism can thrive either independently or in a symbiotic relationship. While semiparasitic refers specifically to the relationship between two organisms, other related terms include hemiparasitic, where a plant partially relies on another plant for nutrients, and semi-social, where animals partially rely on each other for survival.