横断面 おうだんめん noun cross section; transverse section science 1. cross section; transverse section A surface or view produced by cutting straight across an object, perpendicular to its long axis. Used in engineering, anatomy, and geology. 横断面(おうだんめん)を図(ず)に描(えが)く。🔊 Draw a cross section in a diagram. 木(き)の横断面(おうだんめん)に年輪(ねんりん)が見(み)える。🔊 Growth rings are visible in the cross section of the tree. トンネルの横断面(おうだんめん)を見(み)ると、構造(こうぞう)がよく分(わ)かる。🔊 Looking at the cross section of the tunnel makes its structure clear. Compound of 横断(おうだん) (crossing transversely) and 面(めん) (surface, face).Common collocations横断面(おうだんめん)図(ず): cross-sectional diagram横断面(おうだんめん)を取(と)る: to take a cross sectionSimilar words断面(だんめん): cross section, cut surface — the general term, without specifying direction縦断面(じゅうだんめん): longitudinal section — a cut along the long axis general Added 2026.5.24 13:10 · Revised 2026.9.2 13:02 28000/28039_oudanmen