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  1. Leech - Wikipedia

    The leech appears in the biblical Book of Proverbs as an archetype of insatiable greed. [1] The term "leech" is used to characterise a person who takes without giving, living at the expense of …

  2. Leech | Annelid, Bloodsucking Parasite & Medicinal Uses | Britannica

    Dec 26, 2025 · Leech, (subclass Hirudinea), any of about 650 species of segmented worms (phylum Annelida) characterized by a small sucker, which contains the mouth, at the anterior …

  3. LEECH Definition & Meaning - Merriam-Webster

    The meaning of LEECH is any of numerous carnivorous or bloodsucking usually freshwater annelid worms (class Hirudinea) that have typically a flattened lanceolate segmented body …

  4. Leech - Types, Size, Anatomy, Habitat, Diet, Lifespan, & Life Cycle

    Nov 7, 2025 · What are leech. Are they dangerous. Where & how long do they live. What do they eat. How do they reproduce. Learn their size, predators, & life cycle with pictures.

  5. Leech Animal Facts - A-Z Animals

    May 27, 2024 · The leech (Hirudinea) is a predator and blood-sucking parasite that is native to almost every continent. This aquatic worm is a member of the Annelida phylum, which means …

  6. Leech - New World Encyclopedia

    The medicinal leech, Hirudo medicinalis, which is native to Europe, and its congeners have been used for clinical bloodletting for thousands of years. Some species of leech will nurture their …

  7. Leeches - Missouri Department of Conservation

    Different leech species specialize in different hosts, including mammals, reptiles, amphibians, fish, and snails. They usually secrete an enzyme that prevents the host’s blood from clotting, as …

  8. LEECH Definition & Meaning | Dictionary.com

    LEECH definition: any bloodsucking or carnivorous aquatic or terrestrial worm of the class Hirudinea, certain freshwater species of which were formerly much used in medicine for …

  9. Leech - Simple English Wikipedia, the free encyclopedia

    Leech ... A leech, plural leeches, is a kind of worm that live in wet areas. Some only live in water, but some, called terrestrial leeches, can live on land. Terrestrial leeches can only live in wet …

  10. Annelid - Leech, Parasitic, Bloodsucking | Britannica

    Dec 16, 2025 · Annelid - Leech, Parasitic, Bloodsucking: Leeches are segmented worms characterized by a small sucker at the anterior end of the body and a large sucker at the …