ectosymbiosis.

A symbiotic association in which one organism lives on the outside of another.

Use it for

Words that belong together

• external ectosymbiosis
• ectosymbiosis on a host

On the page

The report described ectosymbiosis on the animal’s outer covering.

They compared the ectosymbiosis with organisms living inside the host.

Usage notes

Primary category: sci-fi. Forms: Usually uncountable. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.