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  1. ACCRETION Definition & Meaning - Merriam-Webster

    The meaning of ACCRETION is the process of growth or enlargement by a gradual buildup. How to use accretion in a sentence. Did you know?

  2. Excretion - Wikipedia

    Excretion is elimination of metabolic waste, which is an essential process in all organisms. In vertebrates, this is primarily carried out by the lungs, kidneys, and skin. [1] . This is in contrast …

  3. Definition, Systems, Examples, Importance, & Facts - Britannica

    Dec 3, 2025 · Excretion is a general term referring to the separation and throwing off of waste materials or toxic substances from the cells and tissues of a plant or animal. The separation, …

  4. EXCRETION | definition in the Cambridge English Dictionary

    EXCRETION meaning: 1. the process of getting rid of material such as solid waste or urine from the body: 2. the…. Learn more.

  5. EXCRETION definition in American English | Collins English …

    Excretion is the process of eliminating feces, urine, or sweat from the body. Collins COBUILD Key Words for the Pharmaceutical Industry. Copyright © HarperCollins Publishers.

  6. EXCRETION Definition & Meaning - Merriam-Webster

    Dec 7, 2016 · The meaning of EXCRETION is the act or process of excreting. How to use excretion in a sentence.

  7. Excretion - Metabolites, Waste, Urine | Britannica

    Dec 3, 2025 · The physiological process by which an organism disposes of its nitrogenous by-products is called excretion. The mechanisms for that process constitute the excretory …

  8. EXCRETION Definition & Meaning | Dictionary.com

    the substance excreted, as urine or sweat, or certain plant products. The elimination by an organism of waste products that result from metabolic processes. In plants, waste is minimal …

  9. Fractional Excretion of Sodium (FENa) - MDCalc

    The Fractional Excretion of Sodium (FENa) determines if renal failure is due to pre-renal, intrinsic, or post-renal pathology.

  10. Excretion - definition of excretion by The Free Dictionary

    1. the act of excreting. 2. a substance excreted, as urine or sweat, or certain plant products. Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. …