Biology Dictionary

  • Vocal cords

    Vocal cords

    A pair of muscle-controlled structures in the larynx that vibrate to produce sound for speech and other vocalizations.

  • Voltage

    Voltage

    The electrical potential difference between two points in a circuit, which causes electric current to flow.

  • Voluntary muscle

    Voluntary muscle

    A type of muscle under conscious control, such as skeletal muscles that move the bones and limbs.

  • Voluntary nervous system

    Voluntary nervous system

    The part of the peripheral nervous system that controls voluntary movements of the body, especially the skeletal muscles.

  • Vomerine teeth

    Vomerine teeth

    Teeth located on the vomer bone in the roof of the mouth of some amphibians and fish, used for holding…

  • Vomit

    Vomit

    The forceful expulsion of stomach contents through the mouth, typically due to nausea or digestive upset.

  • Vomitus

    Vomitus

    The material that is expelled during vomiting, usually consisting of food, liquid, and digestive juices.

  • W chromosome

    W chromosome

    A sex chromosome in some animals, including birds, where it pairs with the Z chromosome to determine female sex.

  • W, Z chromosomes

    W, Z chromosomes

    The sex chromosomes found in birds and some reptiles, with the female typically having WZ and the male having ZZ…

  • Villiform

    Villiform

    Resembling or having the form of villi; usually describing structures that are hair-like or finger-like.