Dictionary:

trematode

  (trĕm'ə-tōd')

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Any of numerous flatworms of the class Trematoda, including both external and internal parasites of animal hosts, that have a thick outer cuticle and one or more suckers or hooks for attaching to host tissue. Also called fluke.

Of or belonging to the Trematoda.

[From New Latin Trēmatōda, class name, from Greek trēmatōdēs, having holes, from trēma, trēmat-, perforation.]

Parasitic worms such as Paragonimus westermani that reside in contaminated water and can be transmitted to humans who are exposed to such water sources or who eat improperly cooked fish from the same.

Parasitic worm; member of the class Trematoda. There are three subclasses, Monogenea, containing parasites of fish, amphibians and mammals, Digenea, containing the flukes of domestic animals, called also digenetic trematodes. These cause parasitic disease of most systems, including the blood, eye, liver, reproductive tract, respiratory system, skin and urinary system. The third subclass is the Aspidogastrea, parasitic in molluscs, fish and reptiles.