| trema | Synonym: foramen, vulva. Origin: G. Trema, a hole (05 Mar 2000) |
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| trematoda | Class of parasitic flukes consisting of three subclasses, monogenea, aspidogastrea, and digenea. The digenetic trematodes are the only ones found in man. They are endoparasites and require two hosts to complete their life cycle. (12 Dec 1998) |
| trematode | <zoology> One of the Trematodea. Also used adjectively. Source: Websters Dictionary (01 Mar 1998) |
| trematode infections | Infections caused by infestation with worms of the class trematoda. (12 Dec 1998) |
| trematodea | <zoology> An extensive order of parasitic worms. They are found in the internal cavities of animals belonging to all classes. Many species are found, also, on the gills and skin of fishes. A few species are parasitic on man, and some, of which the fluke is the most important, are injurious parasites of domestic animals. The trematodes usually have a flattened body covered with a chitinous skin, and are furnished with two or more suckers for adhesion. Most of the species are hermaphrodite. Synonym: Trematoda, and Trematoidea. See Fluke, Tristoma, and Cercaria. Origin: NL, from Gr. Having holes, from, a hole. Source: Websters Dictionary (01 Mar 1998) |
| trematoid | <zoology> F or pertaining to the Trematodea. Origin: From Gr, a hole + form. Source: Websters Dictionary (01 Mar 1998) |