Fasciola hepatica vs trematode

Fasciola hepatica and trematode both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fasciola hepatica	Yes	No	No	No
trematode	Yes	No	No	No

As nouns, trematode is a hypernym of Fasciola hepatica; that is, trematode is a word with a broader meaning than Fasciola hepatica:

Fasciola hepatica: flatworm parasitic in liver and bile ducts of domestic animals and humans
trematode: parasitic flatworms having external suckers for attaching to a host

Other hypernyms of Fasciola hepatica include fluke, trematode worm.

Fasciola hepatica (noun)	trematode (noun)
flatworm parasitic in liver and bile ducts of domestic animals and humans	parasitic flatworms having external suckers for attaching to a host