also: わたりま
span; distance between two points; distance between supports
Technical term used in architecture and civil engineering for the span of an arch, bridge, or similar structure; also refers to the distance between two points in general.
The span of this bridge is 50 meters.
アーチの径間を測る。
Measure the span of the arch.
Standard kanji form for the reading けいかん, used in technical contexts.
Alternate kanji form with the reading わたりま; less common than 径間.
Compound of 径 (path, diameter) and 間 (interval, space), referring to the distance or span between two points.