| Subject | English | Japanese |
| gen. | n armor covered with small rectangular plates of metal | カルタ金 |
| gen. | n bread in a rectangular shape | 食パン ichi1 news2 nf25 |
| antenn. | compound rectangular horn antenna | 複合矩形ホーン |
| gen. | contracted rectangular weir | 四角堰 (しかくぜき) |
| phys. | face-centered rectangular lattice | 面心長方格子 (めんしん・ちょうほう・こうし) |
| gen. | Japanese rectangular envelope | 角形 (opening on the short dimension numbered 0-8, A3, A4, each with different sizes) |
| gen. | plane rectangular coordinate | 平面直角座標 (へいめんちょっかくざひょう) |
| tech. | plane rectangular coordinates | 平面直角座標 (へいめんちょっかくざひょう) |
| gen. | poncelet rectangular weir | ポンセレット矩形ゼキ |
| gen. | rectangular arrangement | 碁盤目配列 |
| gen. | rectangular beam | 矩形梁 (くけいばり) |
| gen. | rectangular beam | 長方形梁 (ちょうほうけいばり) |
| tech. | rectangular block | 矩形街区 (くけいがいく) |
| gen. | n rectangular bottle | 角瓶 |
| tech. | rectangular brick | 長方形煉瓦 (ちょうほうけいれんが) |
| tech. | rectangular brick | 矩形煉瓦 (くけいれんが) |
| gen. | n rectangular bugaku mask made of thick paper and white silk with facial features drawn on it | 雑面 |
| gen. | n rectangular bugaku mask made of thick paper and white silk with facial features drawn on it | 造面 |
| gen. | n rectangular bugaku mask made of thick paper and white silk with facial features drawn on it | 蔵面 |
| phys. | rectangular cavity resonator | 方形空洞共振器 (ほうけい・くうどう・きょうしんき) |
| gen. | rectangular channel | 長方形水路 (chōhōkei-suiro) |
| gen. | rectangular checks | 矩形畦区 |
| phys. | rectangular component | 直角成分 (ちょっかく・せいぶん) |
| gen. | rectangular conduit | 長方形管路 |
| el., mech. | rectangular connector | 角形コネクタ |
| construct. | rectangular coordinate system | 直交座標系 (ちょっこう・ざひょうけい) |
| gen. | n rectangular coordinates | 直角座標 (chokkaku-zahyō) |
| gen. | rectangular coordinates | 直轄座標 |
| gen. | n rectangular coordinates | デカルト座標 (Dekaruto-zahyō) |
| gen. | n rectangular coordinates | 直交座標 (chokkō-zahyō) |
| phys. | rectangular coordinate-type potentiometer | 直角座標電位差計 (chokkaku-zahyō-den'isakei) |
| phys. | rectangular distribution | 長方形分布 (ちょうほうけい・ぶんぷ) |
| gen. | rectangular drainage pattern | 矩形状流域模様 |
| gen. | rectangular drainage pattern | 矩形排水方式 |
| gen. | rectangular drainage pattern | く形状流域模様 |
| tech. | rectangular duct | 矩形ダクト (くけいダクト) |
| gen. | rectangular end sill | 長方形エンドシル |
| gen. | n rectangular figures | 直銭形 |
| gen. | rectangular front | 前方 ichi1 news1 nf15 |
| gen. | n rectangular graph | 帯グラフ |
| phys. | rectangular hyperbola | 直角双曲線 (chokkaku-sōkyokusen) |
| phys. | rectangular hysteresis loop | 角形ヒステリシス・ループ (kakugata-hisuterishisu-rūpu) |
| phys. | rectangular lattice | 長方格子 (ちょうほう・こうし) |
| gen. | n rectangular lumber | 角材 news2 nf29 (かく・ざい) |
| phys. | rectangular matrix | 矩形行列 (くけい・ぎょうれつ) |
| tech. | rectangular matrix | 矩形マトリックス (くけいマトリックス) |
| gen. | rectangular notch | 矩形ぜき |
| gen. | rectangular notch | 矩形堰 |
| gen. | rectangular notch | く形ぜき |
| gen. | rectangular orifice | 長方形オリフィス (ちょうほうけいオリフィス) |
| construct. | rectangular parallelepiped | 直方体 (chokuhōtai) |
| comp., MS | rectangular pixel | 長方形ピクセル (A pixel that generally has an aspect ratio of 3:4, 32:27, or 8:9, meaning that it is slightly less tall than it is wide, or vice versa. Nonsquare pixels are standard in digital video) |
| gen. | rectangular plane | 平面直角座標系 |
| phys. | rectangular prism | 直角プリズム (chokkaku-purizumu) |
| phys. | rectangular pulse | 矩形パルス (kukei-parusu) |
| el. | rectangular pulse | 方角パルス |
| phys. | rectangular pulse | 方形パルス (hōkei-parusu) |
| gen. | rectangular pulse | 矩形波 (くけいは) |
| tech. | rectangular rigid frame | 長方形ラーメンRahmen德 (ちょうほうけいラーメン) |
| tech. | rectangular rigid frame | 矩形ラーメンRahmen德 (くけいラーメン) |
| gen. | rectangular rosette | 直交ひずみゲージ |
| gen. | rectangular scale | 指金 (さしがね) |
| gen. | rectangular sedimentation basin | 矩形沈澱池 |
| gen. | rectangular sedimentation tank | 矩形沈殿池 |
| construct. | rectangular-shaped structure | 矩形構成 (くけい・こうせい) |
| gen. | n rectangular-shaped thin-bladed knife | 薄刃包丁 (esp. used for vegetables) |
| gen. | n rectangular solid | 直方体 news2 nf44 (chokuhōtai) |
| gen. | in a castle rectangular space between the inner and outer gates | 桝形 oK (where troops can gather) |
| gen. | in a castle rectangular space between the inner and outer gates | 枡形 (where troops can gather, ますがた) |
| gen. | in a castle rectangular space between the inner and outer gates | 斗形 (where troops can gather) |
| gen. | in a castle rectangular space between the inner and outer gates | 升形 (where troops can gather) |
| construct. | rectangular steel tube | 角形鋼管 (かく・がた・こうかん) |
| tech. | rectangular stone | 短冊石 (たんざくいし) |
| tech. | rectangular system | 直交法 (ちょっこうほう) |
| gen. | rectangular triangle | 直角三角形 (chokkaku-sankakukei) |
| phys. | n rectangular wave | 矩形波 (くけいは) |
| phys. | rectangular-wave oscillator | 方形波発振器 (ほうけいは・はっしんき) |
| antenn. | rectangular waveguide | 方形導波管 (hōkei-dōhakan) |
| tech. | rectangular weir | 四角堰 (しかくぜき) |
| gen. | rectangular weir | 四角せき |
| gen. | rectangular weir | 長方形堰 |
| construct. | rectangular wire | 四角ワイヤー (shikaku-waiyā) |
| construct. | rectangular wire | 平角線 (へいかく・せん) |
| gen. | spherical rectangular coordinates | 球図座標 |
| gen. | n square or rectangular bento box containing cross-shaped separators | 松花堂弁当 |
| gen. | n style of watch with a rectangular face | カスケット |
| gen. | suppressed rectangular weir | 全幅ぜき |
| gen. | suppressed rectangular weir | 全幅堰 (ぜんぷくぜき) |
| food.ind. | various rectangular pastries, esp. layered chocolate | 石だたみ |
| food.ind. | various rectangular pastries, esp. layered chocolate | 石畳 news2 nf28 (いしだたみ) |