Definition of unburned in English:



(also unburnt)
  • 1Not damaged or destroyed by fire.

    ‘According to various accounts, 5 to 7 houses remained unburned.’
    • ‘The hotel was totally destroyed, hardly a fragment of woodwork in the entire building remaining unburned.’
    • ‘He has been having skin grafts from unburnt skin on his abdomen.’
    • ‘Small patches of habitat remained completely unburned within treatment units.’
    • ‘This high-intensity crown fire killed almost all trees in the area, leaving only small patches of unburned forest.’
    • ‘We also described deterioration of each snag using five characteristics based on a modified version of the wildlife tree classification normally used for unburned trees.’
    • ‘His unburnt dorsal portion allows him to lie on his back, with almost the entire body saving the head dressed to prevent exposure to infection.’
    • ‘Even so, the unburned sites generally had simpler communities with more common species.’
    • ‘Among other things they met with several curiously formed graves containing urns with burned and unburned bones.’
    • ‘It was a fragment of paper that remained unburnt.’
    • ‘Data were collected from red maple, chestnut oak, and scarlet oak seedlings on the burned site and an unburned reference site.’
    • ‘The 1996 burn was performed to reduce thatch levels, and hopefully improve germination rates of experimentally added seeds above the low levels expected in an unburned field.’
    • ‘So far, Jordan has used unburned skin on three patients to perform grafts on their hands.’
    • ‘Skin grafts from unburned parts of the patient can be meshed and made to cover three times the original area.’
    • ‘He salvaged the unburned part of the rice and put it into a bowl.’
    • ‘Adjacent to this is an area of unburnt hillside, which has experienced extensive invasion of lantana and other non-native weeds.’
    • ‘In 10 to 14 days, the unburned site will have healed and he can cull it again for more grafts.’
    • ‘The groups are contaminated by only a few fragments of unburned bone, which clearly differ from the burned material in terms of their anatomical and/or taxonomic character.’
    • ‘An unburned, circular, wall-post sweat lodge was also present at this site.’
    • ‘These transects extended down a broad slope into the burn from a mixed stand of unburned spruce and birch on a ridgetop at one edge of the burn.’
    1. 1.1(of energy sources) not used or consumed.
      ‘unburned calories’
      • ‘The engine can achieve maximum rate acceleration under load without spewing clouds of black smoke (unburned fuel) from the exhaust.’
      • ‘Research suggests that unburnt rocket fuel from space launches could contribute to a rise in various diseases in nearby populations.’
      • ‘The problem is not so much the 5,000-pound satellite, but the 1,000 pound of unburned fuel which could cover 200 yards.’
      • ‘Emissions of particulate matter, oxides of nitrogen and, to a lesser extent, unburned hydrocarbons, have remained challenges for diesel developers.’
      • ‘Thus, the fuel supplied to the engine is ignited without fail, and unburned gas release to the atmosphere is surely prevented.’
      • ‘Nitrogen oxides, carbon monoxide, and unburned hydrocarbons are the main exhaust pollutants and they are involved in the production of damaging photochemical smog.’
      • ‘Biodiesel reduces emissions such as carbon monoxide, unburned hydrocarbons and particulate matter.’
      • ‘Two-stroke engines are calibrated to run rich for smooth engine response, resulting in high emissions of carbon monoxide (CO) and unburned hydrocarbon (HC).’
      • ‘Catalytic Converters are usually stainless steel containers and tubing which provide an environment for chemical reactions where unburned hydrocarbons combust, using platinum and rhodium as catalysts.’
      • ‘Other pollutants that can be produced by some appliances are unburned hydrocarbons and aldehydes.’
      • ‘That's a lot of unburned calories.’
      • ‘The use of biodiesel in a conventional diesel engine results in substantial reduction of unburned hydrocarbons, carbon monoxide and particulate matter when compared to emissions from diesel fuel.’
      • ‘These two-stroke engines, by current design, emit 20 to 33 percent of their fuel unburned.’
      • ‘Ozone, a major component of urban smog, is formed by unburned fuel reacting with other compounds in the atmosphere.’
      • ‘After motoring the engine to clear unburned fuel from the engine, and waiting the prescribed time for starter limitations, a restart of engine #5 was attempted.’
      • ‘About 25 to 30 percent of unburned fuel was being ejected into the waterways.’
      • ‘The catalytic converter transforms carbon monoxide and unburned fuel into water and carbon dioxide and also reduces oxides of nitrogen to molecular nitrogen gas.’
      • ‘Fire was an important tool during European settlement, and many catastrophic fires occurred due to the build up of unburned fuels in the form of slash generated from land clearing.’
      • ‘Bio-diesel fuelled engines, like their regular fuel counterparts, still emit carbon monoxide, unburned hydrocarbons, carbon dioxide and particulate matter.’
      • ‘Catalysts minimize emissions of carbon monoxide and unburned hydrocarbons.’
    2. 1.2(especially of bricks) not exposed to heat in a kiln.
      ‘Buildings were made with hewn stone (until then only unburnt bricks were used)’
      • ‘The extensive use of the unburned brick is necessitated by the difficulty of obtaining fuel, and various methods are adopted to reduce the number of burned brick required in construction.’