What are the best answers for “any external parasitic organism (as fleas)”?

ectoparasite, ectozoan, ectozoon, epizoon.

How many letters does the top answer for “any external parasitic organism (as fleas)” have?

The most common answer is ectoparasite (12 letters).

4 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

ectoparasite 12 letters wn-def

any external parasitic organism (as fleas)

ectozoan 8 letters wn-def

any external parasitic organism (as fleas)

ectozoon 8 letters wn-def

any external parasitic organism (as fleas)

epizoon 7 letters wn-def

any external parasitic organism (as fleas)

an external parasitic organism. 60% similar → ectorganism