ectosymbiont

noun
ec·​to·​symbiont
variants: or ectosymbiote \ ¦ek(ˌ)tō+ \

Definition of ectosymbiont 

: a symbiont dwelling on the surface of or physically separate from its host

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Other Words from ectosymbiont

ectosymbiosis \ "+ \ noun
ectosymbiotic \ "+ \ adjective

History and Etymology for ectosymbiont

ect- + symbiont or symbiote

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