1. The part of an anatomical structure or organ that is closest to the point of attachment or the center of the body
The proximal section of the femur is wider than the distal section.
A seção proximal do fêmur é mais larga que a seção distal.
2. In dentistry, the part of a tooth or dental structure nearest to the point of attachment to the jaw
The dentist examined the proximal section of the tooth for cavities.
O dentista examinou a seção proximal do dente em busca de cáries.