Definition of charcoal

charcoalnoun

than củi

/ˈtʃɑːkəʊl//ˈtʃɑːrkəʊl/

The origin of the word "charcoal" can be traced back to medieval times. The term initially referred to the charred remains of brief wooden fires, which were often used to light cooking fires or as a source of light in torches. The word "charcoal" is a compound word made up of two Old English words: "cearu" which means "burn" and "col" which means "coal." The term charcoal, therefore, implies that this product is burnt, or cooked coal. Over time, charcoal became more important as a fuel source due to its higher calorific value and lower levels of smoke compared to other fuels. The process of producing charcoal, called pyrolsis, involves heating wood in the absence of oxygen, which removes the volatile components, leaving only the carbon structure behind. In addition to its use as a fuel source, charcoal has numerous other applications. Because it is almost pure carbon, it is widely used as an artist's medium, a grilling aid, in water filters, and as a form of carbon capture. In summary, the word "charcoal" is derived from Old English words "cearu" and "col," which translates literally to "burnt coal." Its widespread use today extends from fuel and art supplies to industrial applications such as capture of carbon emissions.

namespace

a black substance made by burning wood slowly in an oven with little air. Charcoal is used as a fuel or for drawing.

một chất màu đen được tạo ra bằng cách đốt gỗ từ từ trong lò có ít không khí Than củi được sử dụng làm nhiên liệu hoặc để vẽ.

Example:
  • charcoal-grilled steaks

    bít tết nướng than

  • a charcoal drawing

    một bức vẽ bằng than

a very dark grey colour

một màu xám rất đậm