繊維

1. Origins, structure, and basic meaning

• Structure: 繊維 is read せんい and means thin, threadlike material.
• Basic usage: It describes both fibers making up fabric and structures inside plant stems.

2. Common pitfalls and similar expressions

• で for material and tool
  • In 繊維で織られている, で marks the material from which the fabric is woven.
  • In 顕微鏡で観察した, で marks the instrument used for observation.