English Words Starting With H

• hyposensitize

  verbverb-transitiveVery Low (Technical/Specialist)
  /ˌhaɪ.pəʊˈsen.sɪ.taɪz/To reduce or diminish the sensitivity of an organism to an allergen or other stimulus, typically through a controlled series of exposures.
• hypospadias

  nounvery low
  /ˌhʌɪ.pə(ʊ)ˈspeɪ.dɪ.æs/A congenital medical condition in males where the opening of the urethra is located on the underside of the penis, rather than at the tip.
• hypostasis

  nounC2
  /haɪˈpɒs.tə.sɪs/the underlying reality or substance of a thing, as distinct from its attributes; or the union of divine and human natures in Christ (Theology).
• hypostasize

  verbverb-transitiveC2 (Proficient User)
  /haɪˈpɒstəsaɪz/To treat or regard an abstract concept as a concrete, independent reality or substance.
• hypostatize

  verbverb-transitiveC2
  /haɪˈpɒstətaɪz/To treat an abstract concept as if it were a concrete, real entity.
• hyposthenia

  nounC1/C2
  /ˌhʌɪ.pəʊsˈθiː.nɪə/A condition of abnormally low strength or vitality, especially of the muscles or nervous system.
• hypostome

  nounVery Low
  /ˈhʌɪpə(ʊ)stəʊm/A mouthpart or structure located beneath the mouth, especially in certain invertebrates.
• hypostyle

  adjectivenounC1-C2
  /ˈhʌɪpə(ʊ)stʌɪl/A hall or large space whose roof is supported by columns.
• hyposulfite

  nounC2
  /ˌhaɪpəʊˈsʌlfaɪt/A salt of hyposulfurous acid (H₂S₂O₄).
• hyposulfurous acid

  nounVery Low
  /ˌhaɪ.pəʊˌsʌl.fjʊ.rəs ˈæs.ɪd/An unstable or hypothetical acid with the formula H2S2O4, or its salts (dithionites), which are strong reducing agents.
• hyposulphite

  nounExtremely Low
  /ˌhʌɪpə(ʊ)ˈsʌlfʌɪt/A salt of hyposulphurous acid, specifically sodium thiosulfate (Na₂S₂O₃), historically used as a fixing agent in photography.
• hyposulphurous acid

  nounVery Low / Obsolete Technical
  /ˌhaɪpəʊˈsʌlfərəs ˈæsɪd/An unstable, inorganic chemical compound (H2S2O4) used as a reducing agent, now more commonly known as dithionous acid.
• hypotaxis

  nounLow
  /ˌhaɪ.pəʊˈtæk.sɪs/The grammatical arrangement of constructing sentences with subordination, where clauses are linked using subordinating conjunctions (e.g., 'because', 'if', 'although') to show dependent relationships.
• hypotension

  nounLow frequency / C1+
  /ˌhaɪ.pəʊˈten.ʃən/A medical condition characterized by abnormally low blood pressure.
• hypotensive

  adjectivenounC1-C2 / Low Frequency / Domain-Specific
  /ˌhaɪ.pəʊˈten.sɪv/Relating to or characterized by low blood pressure.
• hypotenuse

  nounLow
  /haɪˈpɒt.ən.juːz/The longest side of a right-angled triangle, opposite the right angle.
• hypothalamus

  nounLow
  /ˌhaɪ.pəʊˈθæl.ə.məs/A region of the brain that regulates autonomic functions and links the nervous system to the endocrine system via the pituitary gland.
• hypothallus

  nounVery Rare (Specialized Technical)
  /ˌhaɪ.pəʊˈθæl.əs/A thin, often non-cellular layer of fungal or lichen tissue at the base of a fruit body or thallus.
• hypothec

  nounC1/C2 (Very Low Frequency)
  /hɪˈpɒθɪk/A legal right or security interest held by a creditor (typically a lender) in a debtor's property, especially land or buildings, without the creditor taking possession of it. The property serves as collateral for a debt.
• hypotheca

  nounC2
  /haɪˈpɒθɪkə/The pledge of a thing or security without transfer of possession, particularly a legal right held by a creditor over property belonging to a debtor (often used in Roman, Scottish, and some civil law systems).

Showing 5921–5940 of 5990 words.