English Words Starting With O

• oysterman

  nounLow
  /ˈɔɪ.stə.mən/A person who gathers, cultivates, or sells oysters for a living.
• oysters rockefeller

  plural-nounLow
  /ˈɔɪstəz ˈrɒkəfɛlə/A cooked oyster appetizer prepared with spinach, herbs, butter, breadcrumbs, and often Pernod or absinthe, baked or broiled.
• oystershell scale

  nounLow
  /ˈɔɪstəʃɛl skeɪl/A specific insect pest, a small, armored scale insect (Lepidosaphes ulmi) that resembles an oyster shell in shape and attaches to trees and shrubs, sucking sap and causing damage.
• oysterwoman

  nounVery Low (C2+)
  /ˈɔɪstəˌwʊmən/A woman whose occupation is gathering, cultivating, or selling oysters.
• oz

  abbreviationnounB2
  /aʊns/An abbreviation for ounce (or ounces), a unit of weight in the avoirdupois and troy systems.
• ozal

  nounExtremely Rare / Obsolete / Not Found
  The word 'ozal' is not a standard English word and is not found in major dictionaries such as the Oxford English Dictionary (OED), Merriam-Webster, or Cambridge. It is a highly obscure, likely non-standard term, possibly a proper noun (e.g., a surname, brand name) or a misspelling. It lacks a conventional definition in the lexicon.
• ozalid

  adjectivenounC2
  /ˈɒzəlɪd/A diazo-type photocopying process or print, producing a direct positive image on paper sensitized with a diazo compound.
• ozark

  nounLow
  /ˈəʊzɑːk/A proper noun referring to a highland region in the central United States, primarily covering southern Missouri, northern Arkansas, and parts of Oklahoma and Kansas; also used as an attributive noun to describe things originating from or characteristic of this region.
• ozark mountains

  plural-nounC1/C2
  /ˈəʊ.zɑːk ˈmaʊn.tɪnz/A highland plateau and dissected mountain region located primarily in the central United States, covering parts of Missouri, Arkansas, Oklahoma, and Kansas.
• ozarks

  nounlow
  /ˈəʊ.zɑːks/A highland plateau region primarily located in the south-central United States, covering parts of Missouri, Arkansas, Oklahoma, and Kansas.
• ozawa

  nounLow
  /əʊˈzɑːwə/A Japanese surname, most famously associated with the conductor Seiji Ozawa.
• ozenfant

  nounVery Low
  /ˈɒzə̃fɒ̃/A proper noun referring to the 20th-century French painter and art theorist, Amédée Ozenfant.
• ozero baykal

  nounC2
  /leɪk baɪˈkɑːl/A very large, ancient, and deep freshwater lake located in Siberia, Russia.
• ozocerite

  nounVery Low
  /əʊˈzəʊkəraɪt/A naturally occurring mineral wax, also known as ozokerite, found in certain rock strata.
• ozone

  nounB2
  /ˈəʊ.zəʊn/A form of oxygen with three atoms per molecule (O₃), found in the Earth's atmosphere, known for its role in blocking ultraviolet radiation.
• ozone hole

  nounB2
  /ˈəʊ.zəʊn ˌhəʊl/An area of the Earth's stratosphere where the concentration of ozone is significantly lower than normal, allowing harmful ultraviolet radiation to reach the surface.
• ozone layer

  nounB1
  /ˈəʊ.zəʊn ˌleɪ.ə/A layer of ozone (O₃) in the Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation.
• ozone sickness

  nounRare
  /ˈəʊzəʊn ˌsɪknəs/An acute pathological condition caused by prolonged exposure to high concentrations of ozone (O₃), characterized by respiratory distress, eye irritation, headaches, and other systemic symptoms.
• ozonic ether

  nounVery Low
  /əʊˈzɒn.ɪk ˈiː.θə/A descriptive poetic or literary term combining the fresh, sharp smell of ozone with the light, volatile quality of ether.
• ozonide

  nounVery Low
  /ˈəʊ.zə.naɪd/A chemical compound formed by the reaction of ozone (O₃) with another compound, typically containing the O₃⁻ ion.

Showing 3161–3180 of 3187 words.