円筒(えんとう) えんとう noun cylinder; cylindrical tube technical 1. cylinder; cylindrical tube A three-dimensional shape with circular cross-sections and straight parallel sides. Used for objects, containers, and geometric descriptions. 円筒(えんとう)形(がた)の容器(ようき)に入(い)れた。🔊 I put it in a cylindrical container. この建物(たてもの)は円筒(えんとう)形(がた)のデザインが特徴的(とくちょうてき)だ。🔊 This building features a distinctive cylindrical design. 紙(かみ)を丸(まる)めて円筒(えんとう)の形(かたち)にし、望遠鏡(ぼうえんきょう)のように覗(のぞ)いた。🔊 I rolled the paper into a cylinder and looked through it like a telescope. UsageOften used with 形(がた)/形(けい) to form 円筒形(えんとうがた)/円筒形(えんとうけい) (cylindrical shape). Appears in technical, architectural, and everyday descriptions of shapes.Common collocations円筒(えんとう)形(がた) (cylindrical shape)円筒(えんとう)状(じょう) (cylindrical)円筒(えんとう)の表面積(ひょうめんせき) (surface area of a cylinder)Related words円錐(えんすい): cone球(きゅう): sphere直方体(ちょくほうたい): rectangular prism筒(つつ): tube, pipe Related Words Related: 円錐(えんすい) (cone) Related: 球(きゅう) (sphere) Related: 直方体(ちょくほうたい) (rectangular prism) general Added 2026.3.6 22:50 · Revised 2026.9.2 13:01 15000/15435_entou