English Words Starting With H

• hydrokinetics

  nounC2
  /ˌhaɪ.drəʊ.kɪˈnet.ɪks/The branch of physics dealing with the energy in moving fluids or the motion of fluids themselves.
• hydrolant

  nounVery Low / Technical
  /ˈhaɪ.drəʊ.lænt/A navigational warning message issued to ships at sea, typically concerning hazards to navigation such as floating objects, derelict vessels, or other dangers.
• hydrolase

  nounC2
  /ˈhaɪ.drə.leɪz/Any enzyme that catalyzes the hydrolysis of a chemical bond.
• hydrologic cycle

  nounC2
  /ˌhaɪ.drəˌlɒdʒ.ɪk ˈsaɪ.kəl/The continuous movement of water on, above, and below the surface of the Earth.
• hydrology

  nounC1
  /haɪˈdrɒlədʒi/The scientific study of the properties, distribution, movement, and effects of water on the Earth's surface, underground, and in the atmosphere.
• hydrolysate

  nounC2
  /haɪˈdrɒl.ɪ.zeɪt/A substance produced by chemical breakdown (hydrolysis) of a compound, often a protein, into simpler components.
• hydrolyse

  verbLow
  /ˈhaɪ.drə.laɪz/To undergo or cause a chemical reaction in which a compound reacts with water and is split into two or more simpler compounds.
• hydrolysis

  nounLow (in general English); High (in scientific/technical contexts)
  /haɪˈdrɒlɪsɪs/A chemical process in which a compound is broken down into two or more simpler compounds through a reaction with water.
• hydrolyte

  nounVery Low (Technical/Specialist)
  /ˈhaɪ.drəʊ.laɪt/A substance that is decomposed or transformed by the process of hydrolysis.
• hydrolyze

  verb-ambitransitiveC2
  /ˈhaɪ.drə.laɪz/To break down a chemical compound by reaction with water.
• hydrolyzed vegetable protein

  nounLow (technical/industry term)
  /ˈhaɪ.drə.laɪzd ˈvɛdʒ.tə.bəl ˈprəʊ.tiːn/A food additive produced by breaking down plant proteins (typically from soy, corn, or wheat) into amino acids and peptides through hydrolysis, used to enhance flavour.
• hydromagnetics

  nounVery low
  /ˌhaɪ.drəʊ.mæɡˈnet.ɪks/The study of the magnetic properties and behavior of fluids, particularly in relation to magnetic fields.
• hydromancy

  nounC1/C2
  /ˈhaɪdrə(ʊ)ˌmænsi/A method of divination that uses water, such as the movement of water, the reflection on water, or patterns formed by objects dropped in water.
• hydromechanics

  nounVery Low / Technical
  /ˌhaɪ.drəʊ.məˈkæn.ɪks/The branch of mechanics and engineering concerned with the mechanical properties and motion of liquids, primarily water.
• hydromedusa

  nounVery Low / Technical
  /ˌhaɪ.drəʊ.mɪˈdjuː.sə/A small, free-swimming jellyfish which is the medusa stage in the life cycle of many hydrozoans (Class Hydrozoa).
• hydromel

  nounVery Rare / Archaic
  /ˈhaɪdrə(ʊ)mɛl/A fermented beverage made from honey and water.
• hydrometallurgy

  nounRare
  /ˌhaɪ.drəʊ.mɛˈtæl.ə.dʒi/The branch of metallurgy involving the extraction and processing of metals from ores using aqueous solutions.
• hydrometeor

  nounC2
  /ˌhaɪ.drəʊˈmiː.ti.ɔː(r)/Any product of condensation or deposition of atmospheric water vapour, whether formed in the free atmosphere or at the Earth's surface. In simpler terms, a particle of liquid water or ice suspended in or falling through the atmosphere.
• hydrometeorology

  nounVery low (C2+)
  /ˌhaɪ.drəʊˌmiː.ti.əˈrɒl.ə.dʒi/The scientific study of atmospheric moisture, especially precipitation (rain, snow, hail, etc.), its formation, distribution, and effects on the Earth's surface.
• hydrometer

  nounLow
  /haɪˈdrɒm.ɪ.tə/A device for measuring the density or specific gravity of liquids.

Showing 5501–5520 of 5990 words.