Now updated for CSW19. New words, if any, and new inflections of existing words, are shown in red.
| acanthocephalan | belonging to the Acanthocephala, a division of parasitic worms with spiny proboscis. |
| angledug | an earthworm. |
| angleworm | a earthworm of the genus Lumbricus, frequently used by anglers for bait. |
| annelid | a member of the Annelida, red-blooded worms. |
| annelidan | a member of the Annelida, red-blooded worms. |
| annulate | (Obs.) an annelid. |
| ascarid | any nematode worm of the parasitic genus Ascaris, infesting the small intestines. |
| ascaris | (Greek) any nematode worm of the parasitic genus Ascaris, infesting the small intestines. |
| bardie | (Aborig.) a white wood-boring grub of Australia. |
| bonamia | a parasite that causes bonamiasis. |
| brandling | a striped earthworm used as fishing bait. |
| carbora | a wood-boring worm. |
| cercaria | (Lat.) the final larval stage of many trematode worms. |
| cercarial | relating to a cercaria, the larval form of a trematode worm. |
| cercarian | relating to a cercaria, the larval form of a trematode worm; (noun) a cercaria. |
| cestode | any parasitic flatworm of the class Cestoda, that includes tapeworms. |
| cestoid | a ribbon-like cestode, or parasitic flatworm. |
| cestoidean | of or like a cestode, a tapeworm; (noun) a tapeworm. |
| coenure | the larval stage of a tapeworm. |
| coenurus | (Lat.) the larval stage of a tapeworm. |
| cootie | (US sl.) a body louse. |
| cysticercus | the larval stage of many tapeworms. |
| digenetic | of or relating to a subclass of trematode worms. |
| diplozoon | a flatworm that lives in pairs fused together on the gills of minnows. |
| distome | a parasitic flatworm. |
| earthworm | the common worm. |
| eelworm | a kind of nematode. |
| epizoan | an animal that lives on the surface of another, esp as a parasite. |
| epizoon | an animal that lives on the surface of another, esp as a parasite. |
| filander | a threadlike intestinal worm in hawks. |
| filaria | (Lat.) a parasitic worm. |
| filarial | relating to a filaria, a parasitic worm. |
| filarian | relating to a filaria, a parasitic worm. |
| filariid | a parasitic worm. |
| flatworm | a tapeworm or other member of the Platyhelminthes. |
| fleshworm | (Arch.) a worm or maggot that feeds on flesh. |
| gapeworm | the parasitic worm that causes the gapes in birds. |
| hairworm | a nematoid worm of the genus Gordius, resembling a hair. |
| heartworm | a filarial worm that is a parasite esp in the hearts of dogs. |
| helminth | a parasitic intestinal nematode. |
| helminthic | of or relating to worms, or Helminthes; (noun) a drug for expelling worms. |
| hirudinean | relating to the leech family; (noun) a member of the leech family. |
| hirudinoid | like a leech. |
| hookworm | an intestinal parasite. |
| horseleech | a large species of leech, supposed to fasten on horses. |
| hydatid | a fluid-filled cyst, esp one containing tapeworm larva. |
| hydatidiform | having the shape of a hydatid, a fluid-filled cyst, esp one containing tapeworm larva. |
| iceworm | a small worm found in glaciers. |
| kutu | (Maori) a body louse, a cootie. |
| leech | a bloodsucking annelid worm; (verb) to cling to and feed upon or drain. |
| leechlike | like a leech. |
| lobworm | a polychaete worm of the genus Arenicola, which burrows in sandy beaches and is much used as fishing bait. |
| lugworm | a polychaete worm of the genus Arenicola, which burrows in sandy beaches and is much used as fishing bait. |
| lumbriciform | shaped like a worm. |
| lumbricoid | wormlike. |
| lumbricus | (Lat.) a genus of annelids including the common earthworm. |
| lungworm | a kind of parasitic worm. |
| metacercaria | a parasitic trematode in encysted form. |
| metacercarial | of or like a metacercaria. |
| miracidial | relating to a miracidium, the ciliated first-stage larva of a trematode. |
| miracidium | the ciliated first-stage larva of a trematode. |
| monogenean | a monogenetic trematode, a kind of parasitic flatworm. |
| muckworm | a larva or grub that lives in muck or manure; a person who acquires money by mean devices. |
| nema | a nematode, a parasitic worm with an unsegmented, cylindrical body. |
| nemathelminth | a member of the Nemathelminthes, a phylum of worms including nematodes. |
| nemathelminthic | of or like a nemathelminth, a member of the Nemathelminthes, a phylum of worms including nematodes. |
| nematode | a parasitic worm with an unsegmented, cylindrical body. |
| nematodirus | any of a genus of parasitic nematode worms found in the intestines of mammals. |
| nematoid | of or pertaining to the Nematoidea, the class of nematodes. |
| nematological | relating to nematology. |
| nematology | the study of nematodes. |
| nemertean | any of a phylum of wormlike animals, mostly marine, ciliated, often brightly coloured. |
| nemertian | any of a phylum of wormlike animals, mostly marine, ciliated, often brightly coloured. |
| nemertine | any of a phylum of wormlike animals, mostly marine, ciliated, often brightly coloured. |
| oligochaete | any worm of the Oligochaeta, chaetopods in which the locomotor organs are reduced to bristles, eg earthworms, etc. |
| peripatus | a member of the genus Peripatus, having both arthropod and annelid characteristics. |
| pillbug | a wood louse that can roll itself into a ball. |
| pinworm | a small nematoid worm, parasitic chiefly in the rectum of man. |
| planaria | a kind of aquatic flatworm. |
| planarian | a kind of aquatic flatworm. |
| planula | (Lat.) a free-swimming, two-layered, often flattened larva of coelenterates etc. |
| planular | of or like a planula, a free-swimming, two-layered, often flattened larva of coelenterates etc. |
| planuloid | of or like a planula, a free-swimming, two-layered, often flattened larva of coelenterates etc. |
| plerocercoid | the infective larva of tapeworms. |
| procercoid | the solid first parasitic larva of some tapeworms. |
| ragworm | any polychaete worm of the family Nereidae, found in sand or under stones and often used as bait. |
| rhabdocoele | a turbellarian worm with an unbranched intestine. |
| roundworm | a nematoid worm. |
| sandworm | any one of numerous species of annelids which burrow in the sand of the seashore. |
| schistosomal | of or like a schistosome, a disease-causing blood fluke. |
| schistosome | a disease-causing blood fluke. |
| scolecid | a worm of the Scolecida, the class of tapeworms. |
| strawworm | a caddice worm. |
| strongyl | (Greek) a blunt rhabdus; a parasitic threadworm. |
| strongyle | (Greek) a blunt rhabdus; a parasitic threadworm. |
| strongyloid | a strongyl, a parasitic threadworm. |
| tapeworm | a parasitic worm. |
| tardigrade | an arthropod with eight legs living in water or damp moss. |
| threadworm | any long, slender nematode worm, esp the pinworm and filaria. |
| trematode | a kind of parasitic flatworm. |
| trematoid | a kind of parasitic flatworm. |
| triclad | any member of the order Tricladida of turbellarian flatworms. |
| tubeworm | an undersea worm. |
| tubifex | a freshwater tubicolous worm used as bait. |
| tubificid | a tubifex, a freshwater tubicolous worm used as bait. |
| turbellarian | a kind of flatworm. |
| uncinaria | hookworm. |
| vermian | relating to worms. |
| vermicular | resembling a worm in form or motion. |
| vermicularly | (Adv.) VERMICULAR, resembling a worm in form or motion. |
| wheatworm | a small nematode worm which attacks the grains of wheat in the ear. |
| whipworm | a kind of nematode worm often found parasitic in the human intestine. |
| worm | a small, limbless invertebrate (verb) to rid of worms |
| wormcast | a spiral heap of earth left by a burrowing worm. |
| wormish | like a worm. |