na-adjective
cross-sectional; lateral; transverse; cross-cutting
Describes something that spans across multiple areas, fields, or categories, often used in academic, organizational, or analytical contexts.
この研究は横断的なデータ分析を行った。
This study conducted a cross-sectional data analysis.
部署間の横断
Cross-departmental cooperation is necessary.
Compound of 横断 (crossing, traversing) + 的 (-like, -al). The exact historical derivation is uncertain, but the word follows a common pattern for forming adjectival nouns from Sino-Japanese compounds.