About 475,000 results
Open links in new tab
  1. Parasitism - Wikipedia

    Parasitism is a kind of symbiosis, a close and persistent long-term biological interaction between a parasite and its host. Unlike saprotrophs, parasites feed on living hosts, though some parasitic …

  2. Parasitic Infection: Causes, Symptoms & Treatment

    Parasitic infections are diseases caused by organisms that live off of another living thing. They can cause fever, fatigue, intestinal symptoms, skin rashes or neurological symptoms.

  3. About Parasites | Parasites | CDC

    Nov 14, 2024 · There are three main classes of parasites that can cause disease in humans: protozoa, helminths, and ectoparasites. Protozoa are microscopic, one-celled organisms that …

  4. PARASITIC Definition & Meaning - Merriam-Webster

    The meaning of PARASITIC is of, relating to, or being a parasite. How to use parasitic in a sentence.

  5. PARASITIC Definition & Meaning | Dictionary.com

    PARASITIC definition: of, relating to, or characteristic of parasites. See examples of parasitic used in a sentence.

  6. PARASITIC | English meaning - Cambridge Dictionary

    PARASITIC definition: 1. Parasitic organisms live on other animals or plants of a different type and feed from them: 2…. Learn more.

  7. Parasitic disease | Definition, Types, & Causes | Britannica

    parasitic disease, in humans, any illness that is caused by a parasite, an organism that lives in or on another organism (known as the host). Parasites typically benefit from such relationships, …

  8. Overview of Parasitic Infections - The Merck Manuals

    Parasites usually enter the body through the mouth or skin. Parasitic infections can affect various body systems and can cause a range of symptoms, from mild discomfort to severe illness, …

  9. Parasitic - Definition, Meaning & Synonyms | Vocabulary.com

    The adjective parasitic is mainly a scientific term for talking about an organism that lives on a host, taking what it needs to stay alive while often injuring the host. By their nature, ticks, leeches, …

  10. Parasitic infections: Types, symptoms, treatment - Medical News Today

    Nov 24, 2025 · There are many different types of parasitic infections, which can range from mild to severe. In this article, we detail some different types of parasitic infections in humans, their …