Category: O

  • Ozoena

    Discharge of the nostrils caused by chronic inflammation of the nostrils.  

  • Oxyuriasis

    Infestation by pinworms. Infection with Enterobius vermicularis (in humans) or with other worms. An intestinal infestation with pinworms.  

  • Oxygen radical absorbance capacity (ORAC)

    A method of measuring antioxidant capacities in biological samples.  

  • Oxytocin

    Is a mammalian hormone that also acts as a neurotransmitter in the brain. It is best known for its roles in female reproduction: it is released in large amounts after distension of the cervix and vagina during labor, and after stimulation of the nipples, facilitating birth and breastfeeding, respectively. A hormone of the pituitary gland…

  • Oxytocic adj

    Hastening or facilitating childbirth, especially by stimulating contractions of the uterus. An agent that promotes rapid labour by stimulating contractions of the uterus. Induces contractions of the uterus. Stimulating movements of the uterus. Speeding up of parturition (labour). A drug that stimulates the uterus to contract, oxytocin.  

  • Oxidoreductase activity

    Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.  

  • Oxidation

    The process of adding oxygen to a compound, dehydrogenation or increasing the electro-negative charge. The act of oxidizing or state of being oxidized. Chemically it consists in the increase of positive charges on an atom or the loss of negative charges. Most biological oxidations are accomplished by the removal of a pair of hydrogen atoms…

  • Ovariectomy

    Surgical removal of one or both ovaries. Oophorectomy. The partial or complete excision of an ovary. The surgical extraction of an ovary, also referred to as oophorectomy or ovariotomy.  

  • Ovariectomised

    With one or two ovaries removed.  

  • Otorrhea

    Otorrhea

    Running drainage (discharge) exiting the ear. Any discharge from the ear, commonly a purulent discharge in chronic middle ear infection.