What does deworming mean?
Deworming is the treatment or removal of parasitic worms from an animal or person. The term is especially common in veterinary medicine, where it covers routine preventive treatment of dogs, cats, livestock, and other animals as well as the treatment of diagnosed infections. It usually refers to administering an anthelmintic medicine, the standard medical approach to eliminating worm infestations. In everyday use, the word generally has a practical, preventive connotation rather than suggesting severe disease. Deworming is also relevant in human medicine, including the treatment of helminth infections and, in some public-health programs, the control of soil-transmitted worms. Because products, schedules, and risks differ among species and regions, advice from a veterinarian or clinician is more reliable than general assumptions. The word combines the familiar prefix de-, indicating removal, with the older English word for a worm and its relatives, making the concept straightforward even when the medical terminology is not.
nounThe process of ridding an animal or person of parasitic worms, especially by administering an anthelmintic medicine.
- The treatment or removal of parasitic worms from an animal or person, especially through medication designed to expel them.
"The veterinarian recommended regular deworming for the puppies."
"The shelter includes deworming in the care of every animal before adoption."
"Deworming is especially important for puppies and kittens that may acquire parasites from their mothers."
The plural is uncommon and is chiefly used when referring to separate deworming treatments or events.
"Annual dewormings for dogs and cats are routine at the shelter."
Deworming is the unglamorous job of helping a pet clear worms from its digestive system—and one reason routine veterinary care can prevent bigger trouble.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does deworming come from?
Deworming is an English formation built from de-, meaning removal or undoing, and worm. English worm continues Old English wyrm, a word for a worm or serpent, and ultimately Proto-Germanic *wurmiz; it is cognate with Latin vermis, the source of related English forms such as vermicular and vermifuge. The compound deworm and its gerund deworming developed in English for the removal or treatment of worms, particularly in medical and veterinary use.
How deworming is actually used
Deworming is common in veterinary, agricultural, and public-health contexts. It usually denotes treatment with an anthelmintic medicine rather than the physical removal of worms. Usage is international, although recommended schedules, products, and risks vary by species and region.
Easily confused with deworming
The terms overlap, but deworming explicitly refers to removing or treating worms, whereas worming can also mean using worms as fishing bait.