Definition

1. Noun:
   • A close, long-term biological interaction between two different species: "symbiosis" refers to a relationship where both organisms live together, typically in physical association.
   • A mutually beneficial partnership: In biology, "symbiosis" specifically describes an interdependent relationship where each species gains advantages from the other.
   • A cooperative relationship of mutual benefit: By extension, "symbiosis" can describe any mutually advantageous partnership between people, groups, or entities.

Usage Examples

• Noun:
  • The symbiosis between the clownfish and the sea anemone provides protection for the fish and nutrients for the anemone.
  • Lichens are a classic example of symbiosis, formed from algae and fungi.
  • Their business partnership was a true symbiosis, with each company's strengths perfectly complementing the other's.

Advanced Usage

• "Obligate symbiosis": A relationship where the organisms are entirely dependent on each other for survival.
  • Many gut bacteria have an obligate symbiosis with their host animals.
• "Facultative symbiosis": A relationship where the organisms benefit from but do not strictly require the partnership to live.
  • The birds and the large mammals have a facultative symbiosis; the birds eat insects off the mammals' backs.

Variants and Related Words

• Symbiotic (adj): Relating to or characterized by symbiosis.
  • They have a symbiotic relationship that benefits the entire community.
• Symbiont (n): An organism living in a state of symbiosis.
  • Each symbiont contributes something essential to the partnership.

Synonyms

• Mutualism: A symbiotic relationship where both parties benefit (a specific type of symbiosis).
• Interdependence: The state of being dependent on one another.
• Partnership: A cooperative relationship between parties.

Related Phrases and Concepts

• "Live in symbiosis": To exist in a mutually beneficial relationship.
  • The two companies have learned to live in symbiosis within the same market.
• "Break the symbiosis": To end a mutually dependent relationship.
  • Environmental changes can break the symbiosis between a plant and its pollinator.

Notes on Meaning

In strict biological terms, "symbiosis" is a broad category that includes relationships where one or both organisms benefit. While the reference definition emphasizes mutual benefit (mutualism), the general term can also encompass other interactions like parasitism (where one benefits at the other's expense) and commensalism (where one benefits and the other is unaffected). However, in common non-scientific usage, "symbiosis" almost always implies a mutually beneficial arrangement.

Noun

1. the relation between two different species of organisms that are interdependent; each gains benefits from the other