Biology Dictionary

  • Urinary

    Urinary

    Pertaining to urine or the urinary system, which includes the kidneys, ureters, bladder, and urethra.

  • Urinary bladder

    Urinary bladder

    The organ in the body that temporarily stores urine produced by the kidneys before it is expelled from the body.

  • Urine

    Urine

    A fluid that is excreted by the kidneys as a result of filtration and metabolism, containing waste products like urea,…

  • Uriniferous tubule

    Uriniferous tubule

    The functional unit of the kidney where filtration, reabsorption, and secretion occur, leading to the production of urine.

  • Urochordata

    Urochordata

    A subphylum of chordates that includes tunicates, marine animals that have a notochord and gill slits in their larval stage.

  • Urogenital

    Urogenital

    Pertaining to the organs of the urinary and reproductive systems.

  • Urology

    Urology

    The branch of medicine that deals with the diagnosis and treatment of urinary tract diseases and male reproductive disorders.

  • Uropod

    Uropod

    A tail appendage found in some crustaceans, used for swimming and often paired with other limbs.

  • Universal gas constant

    Universal gas constant

    A constant used in equations describing gases, denoted by R, which relates temperature, pressure, and volume in the ideal gas…

  • Universal recipient

    Universal recipient

    A person with blood type AB positive, whose blood can receive donations from any other blood type.