English Words Starting With H

• hypernym

  nounC1
  /ˈhaɪ.pə.nɪm/A word whose meaning includes the meanings of other, more specific words.
• hypernymy

  nounC2
  /haɪˈpɜːnɪmi/The semantic relation between a general term (hypernym) and a more specific term that falls under it (hyponym).
• hyperon

  nounVery Low
  /ˈhaɪpərɒn/A subatomic particle that is a baryon containing one or more strange quarks, heavier than a nucleon (proton or neutron).
• hyperopia

  nounLow
  /ˌhaɪ.pərˈəʊ.pi.ə/An eye condition where distant objects are seen more clearly than near ones because the eyeball is too short or the lens has too little focusing power; farsightedness.
• hyperorexia

  nounRare/Very Low Frequency
  /ˌhaɪ.pər.ɒˈrek.si.ə/A pathological or extremely heightened appetite, often associated with certain medical conditions.
• hyperosmia

  nounC2/Rare/Technical
  /ˌhaɪ.pərˈɒz.mi.ə/An abnormally heightened sense of smell.
• hyperosteogeny

  nounExtremely rare (specialist medical/biological term)
  /ˌhaɪ.pər.ɒs.tiˈɒdʒ.ə.ni/Excessive or abnormally rapid formation of bone tissue.
• hyperostosis

  nounVery Low (C2+)
  /ˌhaɪ.pər.ɒsˈtəʊ.sɪs/An abnormal, excessive growth of bone tissue.
• hyperovaria

  nounVery rare
  /ˌhaɪ.pər.əʊˈvɛə.ri.ə/A medical condition characterized by excessive production or function of the ovaries.
• hyperoxemia

  nounVery Low
  /ˌhaɪ.pər.ɒkˈsiː.mi.ə/An abnormally high concentration of oxygen in the blood.
• hyperoxide

  nounC2
  /ˌhaɪ.pərˈɒk.saɪd/A chemical compound containing more oxygen than a normal oxide, specifically one containing the O₂⁻ anion (superoxide).
• hyperparasite

  nounLow-frequency (specialist)
  /ˌhaɪ.pəˈpær.ə.saɪt/A parasite that lives on or in another parasite.
• hyperparathyroidism

  nounC2
  /ˌhaɪ.pəˌpær.əˈθaɪ.rɔɪ.dɪ.zəm/A medical condition caused by excessive production of parathyroid hormone.
• hyperphagia

  nounC2
  /ˌhaɪ.pəˈfeɪ.dʒə/A medical condition characterised by excessive hunger and abnormally large consumption of food.
• hyperpituitarism

  nounVery Low
  /ˌhaɪ.pə.pɪˈtjuː.ɪ.tə.rɪ.zəm/A medical condition caused by excessive secretion of hormones from the pituitary gland.
• hyperplane

  nounC1/C2
  /ˈhaɪ.pə.pleɪn/In geometry, a subspace of one dimension less than its ambient space; a flat, infinitely extended geometric surface used to separate data points in higher dimensions.
• hyperplasia

  nounC2
  /ˌhʌɪpəˈpleɪzɪə/An abnormal increase in the number of cells in an organ or tissue, causing enlargement.
• hyperploid

  adjectivenounVery low frequency / Specialist term
  /ˈhaɪ.pə.plɔɪd/Having more than the normal, complete set of chromosomes per cell.
• hyperpnea

  nounC2
  /ˌhaɪ.pəpˈniː.ə/An increase in the depth and rate of breathing, especially to meet increased oxygen demand.
• hyperpnoea

  nounC2/Technical
  /ˌhaɪ.pəpˈniː.ə/Abnormally rapid or deep breathing

Showing 5741–5760 of 5990 words.