Definition of blowdown in English:



mass noun
  • 1North American Trees that have been blown down by the wind.

    count noun ‘he tramped miles through blowdowns after the hurricane’
    • ‘With the exception of hurricane impacts, the spatial and temporal characteristics of forest blowdowns have not been well studied in eastern deciduous forests.’
    • ‘In other words, it's a type of animal that prefers a forest with clearings (whether created by fire, blowdowns, or logging) to larger, unbroken tracts of old growth.’
    • ‘The understory data for intact forests matches the regeneration we recorded in blowdowns very closely, suggesting that blowdowns leave the understory undamaged.’
    • ‘In these crowded stands, trees become increasingly susceptible to attack by insects and pathogens, blowdowns in storms, and catastrophic crown fires as live and dead forest fuel builds up.’
    • ‘Comparisons with similar studies in the literature are problematic because of differences in methods, minimum patch sizes, and the processes that generated the blowdowns.’
    • ‘Although rare, hurricane-caused blowdowns of this scale are not unprecedented in the Coweeta Basin.’
    • ‘They were built as a system of separate fortresses, abatis lines, and on forested terrain, tree blowdowns.’
    • ‘Although uncommon, large blowdowns generated from inland hurricanes provide an opportunity to study the effects of catastrophic windfall.’
    1. 1.1 The blowing down of a tree or trees.
      ‘blowdown occurs when soil and root balls can't resist wind pressure’
      • ‘The saturated soils from the heavy rainfall followed by high windspeeds caused substantial blowdown in the Coweeta Basin and in much of the southern Appalachians.’
      • ‘For a small blowdown, we recorded data on all gap - makers.’
      • ‘A freak straight-line windstorm caused a massive blowdown of trees in the area in 1999, and the profusion of fallen timber raised fears of a catastrophic firestorm.’
      • ‘Disturbance rates derived from public land survey data have been widely cited in the literature, because they provide estimates of blowdown and fire occurrence at a regional scale prior to extensive European settlement.’
      • ‘But the gash makes Luna more vulnerable to blowdown because redwoods have shallow roots.’
      • ‘The scale of the blowdown was the first problem.’
      • ‘The H + S forest had a considerable amount of slash left from the logging, and pit and mound topography was created from the blowdown of large trees.’
      • ‘In 1985 a large section was affected by another large blowdown.’
      • ‘We reached the section of the trail where the bikes had to be carried due to copious amounts of blowdown.’
  • 2The removal of solids or liquids from a container or pipe using pressure.

    as modifier ‘designs had to withstand blowdown conditions’
    • ‘This concentrated liquid known as ‘blowdown,’ carries impurities out.’
    • ‘Blowdown liquid withdrawn from the recycle acid liquor, may be recycled to the incinerator or further treated by neutralization, precipitation, and filtration of the precipitated toxic metals.’
    • ‘The liquid blowdown stream from the main wet scrubbing system is mixed with a hot flue gas slipstream.’
    • ‘Deposition can be avoided by increasing liquid blowdown rate.’
    • ‘Boiler blowdown is essential for the continued operation of any boiler.’