球体

1. Origins, structure, and basic meaning

• Structure: 球体 is read as きゅうたい and is a noun for a sphere or a three-dimensional object rounded in every direction.
• Basic usage: Use 球体にする for changing material into that shape and 球体が浮かんで見える for its visual appearance.

2. Common pitfalls and similar expressions

• Flat and three-dimensional forms
  • 球体 has volume like the clay shape or exhibit in the examples; it is not merely a flat circle.
• Actual state and appearance
  • 浮かんで見える says that the object appears to float, so it does not establish that it is physically suspended.