Popcorn is a type of corn kernel that expands and puffs up when heated. The scientific name is Zea mays everta.
In modern culture, popcorn is most commonly associated with:
1. Movie theaters and cinema snacks
2. A popular snack food at carnivals and fairs
3. Microwave popcorn for home consumption
The term "popcorn" is also used metaphorically to describe:
1. Rapidly appearing things (like "popcorn thoughts")
2. The sound of gunfire in military slang
3. A style of music with short, staccato notes