Definition of hormone in English:



  • 1A regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action.

    • ‘The ovaries also make the hormones oestrogen and progestogen, which help to regulate the menstrual cycle (periods).’
    • ‘The concept of hormones as potent substances regulating physical processes in organisms implied a drastic change in the paradigm of physiology.’
    • ‘The physical stress of a cold or other illness causes your body to produce hormones that raise your blood sugar level.’
    • ‘Fat cells convert hormones called androgens into estrogen, which raises a woman's risk.’
    • ‘Insulin is the hormone which keeps blood sugar levels within the normal healthy range.’
    • ‘It's one of the lipids, or fats, your body makes and is used to build cell walls and form some hormones and tissues.’
    • ‘The kidneys also produce hormones that regulate our blood pressure and body salts.’
    • ‘These gonadotropins in turn stimulate synthesis of steroid hormones in target tissues.’
    • ‘Over the past three decades a great deal of evidence has accumulated in favor of the hypothesis that steroid receptor hormones act via regulation of gene expression.’
    • ‘Just like the normal endometrium, endometrial cells need the hormone oestrogen to survive and grow.’
    • ‘HGH is one of several hormones that maintain blood sugar within a normal range.’
    • ‘Diabetes is caused by problems with insulin, the hormone that triggers cells to absorb and store glucose from the blood.’
    • ‘Blood glucose is tightly regulated in the body by two hormones called insulin and glucagon.’
    • ‘It turns out that the active form of vitamin D is one of the most potent hormones to inhibit cell proliferation.’
    • ‘From a physiological perspective, we need to better understand how hormones regulate tissues.’
    • ‘People who are constantly under stress have a high level of hormones like cortisone and adrenalin in their blood.’
    • ‘The gene altered in the giant rats makes the protein Leptin, a hormone released by fat cells as an appetite regulator.’
    • ‘The gene makes a receptor protein that is stimulated by a brain hormone called vasopressin.’
    • ‘The organ produces enzymes essential for digestion and secretes hormones that help control blood sugar levels.’
    • ‘Specific hormones that belong to this category are epinephrine and norepinephrine.’
    1. 1.1A synthetic substance with a similar effect to that of an animal or plant hormone.
      • ‘They could be giving hormones to the farm animals, or antibiotics, and who knows what's in their feed.’
      • ‘The basic hormone on which all synthetic anabolic steroids are based.’
      • ‘I can't say I missed bleeding, but I did feel weird about a steady diet of synthetic hormones.’
      • ‘People become vegetarians for all kinds of reasons; pumping sentient animals full of hormones and making their lives hell being only one of them.’
      • ‘There are no synthetic hormones, no pesticides, and no unnecessary ingredients.’
      • ‘Age, ethnicity, body mass index, and previous use of hormones had no effect on outcomes.’
      • ‘For this reason, the synthetic hormones are technically known as ovulation inhibitors.’
      • ‘Doctors insert rods into their arms which release synthetic hormones that prevent the teenagers producing eggs.’
      • ‘The synthetic hormones have side effects, especially liver qi stagnation and blood stagnation.’
      • ‘Anabolic steroids are synthetic hormones that cause the body to produce muscle and prevent muscle breakdown.’
      • ‘As your baby's born, you may be given an injection of a synthetic hormone, usually in your thigh or buttock.’
      • ‘Treatment is typically with synthetic thyroid hormones, which can normalize blood pressure.’
      • ‘Anabolic steroids are made with synthetic male hormones and cause more dangerous side-effects among girls than boys.’
      • ‘One recommended the usual synthetic hormones; another prescribed black cohosh and yam extract.’
    2. 1.2A person's sex hormones as held to influence behaviour or mood.
      ‘she told herself she was suffering from hormones, that she would cheer up soon’
      • ‘Follow these steps to keep your hormones in balance - and your hormone-induced mood swings to a minimum.’
      • ‘And how can you trust your teenage opinion of people, when those opinions were being formed via rampaging hormones and juvenile mood swings?’
      • ‘It may have been his hormones which improved his mood, as I watched him check her out constantly.’
      • ‘It was not the scantily clad woman that disgusted Joel, but the effect his own hormones had on him.’
      • ‘I need it to keep my hormones leveled out or I get the worst possible mood swings you can imagine.’
      • ‘It is also influenced by her weight and by hormones.’


Early 20th century: from Greek hormōn, present participle of horman impel, set in motion.