- the union of two animals, naturally or experimentally, as by blood circulatory connections
- the temporary and reversible suspension of a vital life process
- the living together of two or more different species, as in mixed flocks of birds or in mixed colonies of ants
Origin of parabiosispara- + -biosis
- The natural or surgical union of anatomical parts of two organisms, usually involving exchange of blood, as in the development of conjoined twins or in certain transplant operations.
- A temporary suspension of conductivity or excitability in a nerve.
- (physiology) The (natural or surgical) union of parts of two organisms, especially in such a way as to cause them to share their vascular systems). Organisms so joined then are called parabionts)
- The fusion of two embryos to form conjoined twins
- A transient physiological state of suspension of obvious vital activities such as to enable an organism to escape the notice of its enemies or to conserve its energy.
- (ecology) (ethology) A form of symbiosis, typically among ants, in which different species share common nest galleries but maintain distinct broods and do not practice mutualism other than incidentally.
- (medicine) An alien form of life within an organism, commonly invasive, such as a growing cancer.