a device for suppressing fire, consisting of a steel cylinder containing compressed carbon dioxide, which may be released by pressing on a handle. The release of the gas is usually accomplished through a hose attached to a funnel-shaped vent which is directed at the base of the fire, and when released, part of the carbon dioxide is chilled sufficiently to solidify into a powder. The large quantity of inert carbon dioxide released on top of a small fire is usually sufficient to exinguish the flame by excluding oxygen, and the cooling effect also helps drive the temperature of the combustible material below that required to support compustion. It is used in situations where putting water on the fire might cause undesirable damage. [ PJC ]
n. One who, or that which, extinguishes; esp., a hollow cone or other device for extinguishing a flame, as of a torch or candle. [ 1913 Webster ]
fire extinguishera portable device designed to deliver chemicals, usually in a stream, that can suppress or extinguish a fire. Examples of fire extinghuishers are a carbon dioxide extinguisher, or CO2 extinguisher, and soda-acid extinguisher. [ PJC ]
แสดงได้ทั้งความหมายของคำเดี่ยว และคำผสม ได้อย่างถูกต้อง
เช่น Secretary of State=รัฐมนตรีต่างประเทศของสหรัฐฯ (ในภาพตัวอย่าง),
High school=โรงเรียนมัธยมปลาย
