hot blast

A worker monitors the hot blast entering the furnace.

Definition

Noun: A strong current of heated air, especially one used in industrial processes such as iron smelting or in a furnace.

Usage Examples

• (A current of heated air used in manufacturing.)
• (The heated air flow was controlled for efficiency.)

Advanced Usage

• "hot blast stove": A device that preheats air before it is blown into a blast furnace.
  • The hot blast stove was maintained at a constant temperature to ensure consistent iron production. (A specialized piece of equipment for industrial heating.)

Variants and Related Words

• Hot-blast (adj, often hyphenated): relating to or using a hot blast.

  • The hot-blast system improved the furnace's energy efficiency. (Describing a process involving heated air.)

• Blast (n): a strong gust of air or wind.

  • A blast of cold air hit us as we opened the door. (A sudden rush of air.)

Synonyms

• Heated air: air that has been raised in temperature.
• Forced hot air: air moved under pressure and heated.

Related Idioms

• Blast from the past: (not directly related) a nostalgic reminder of the past.
  • Seeing that old car was a real blast from the past. (An unexpected memory.)