Bending or curvature; the state of being bent or indented. Often used for physical curvature (e.g., pipe bends) or joint flexion in medical/engineering contexts.
川の屈曲部に古い橋がかかっている。
An old bridge spans the bend in the river.
この配管は屈曲が多いため、点検が必要だ。
This piping has many bends and therefore needs inspection.
理学療法士は患者の腰の屈曲の範囲を測定した。
The physical therapist measured the patient's range of flexion in the lower back.