風洞 (ふうどう)wind tunnel

風洞, its kanji, and other words that share them.Open this graph

Kanji in 風洞

台風たいふうtyphoon; hurricane
風景ふうけいscenery; scene
風土ふうどnatural features; topography
追い風おいかぜtailwind; fair wind
風潮ふうちょうtide; current
風速ふうそくwind speed
風邪かぜ(common) cold; influenza
強風きょうふうstrong wind; high wind
空洞くうどうcave; hollow
洞ほらhollow; cavity
洞察どうさつdiscernment; insight
洞穴ほらあなcave; cavern
洞窟どうくつcavern; cave
鍾乳洞しょうにゅうどうlimestone cave; limestone cavern
仙洞御所せんとうごしょpalace of a retired emperor
台湾小洞燕たいわんしょうどうつばめbrown-throated martin (Riparia paludicola); brown-throated sand martin

See how 風洞 connects to the rest of Japanese.