Orbit - Kido

Japanese: 軌道 - きどう

〘noun〙① The path of an object or particle that moves with a constant speed and direction. In particular, it refers to the path that celestial bodies travel. [Wa-Ei-Go-Rin-Shusei (reprint) (1872)] *Revised and expanded Physics Steps (1876) from Katayama Junkichi, Vol. 2 "However, their movements all have their own definite paths, which are called tracks." ② The predicted and planned direction or state in which things move in a certain direction. The correct direction. Also, moving in that direction. *Returning Home (1890) from Miyazaki Kotoko, Vol. 8 "My past history, my present position, and my future track." ③ A road on which vehicles travel. Or, the tracks made by wheels. A rut. (i) A structure for the passage of vehicles. A roadbed is laid on top of the roadbed, and two or more rails are laid parallel to each other, fastened with sleepers or other fasteners. It is also sometimes used to mean the same thing as rails. ※Western Affairs (1866-70) by Yukichi Fukuzawa and others: "Beginning with the reform of railways, thickening the wire and determining the width of the tracks." (b) Structures laid on the surface of roads used for general traffic to allow railway vehicles to run on them. ※Railway Ordinance (1890) Article 2: "For the installation of tracks for horse-drawn railways and other similar railways."

Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information

Japanese:

〘名〙① 一定の速度と方向をもって運動する物体または粒子の道すじ。特に、天体の運行する径道をいう。〔和英語林集成（再版）（1872）〕※改正増補物理階梯（1876）〈片山淳吉〉下「然れども其運行は互に皆限定したる常道ありて、之を軌道と名づけ」② 物事がある方向に進んでいくように予想され、計画されたその方向、状態。正しい方向。また、その方向に進むこと。※帰省（1890）〈宮崎湖処子〉八「唯我が過去の履歴、現在の地位、未来の軌道」③ 車の通行する道。または、車輪の跡。わだち。(イ) 車両の通行に供するための構造物。路盤の上に道床を設け、まくら木などで締結した二本以上の軌条を平行に敷設してある。また、軌条と同じ意味に使われることもある。※西洋事情（1866‐70）〈福沢諭吉〉外「鉄道の改革を始め鉄線を太くし軌道の幅を定め」(ロ) 一般交通の用に供する道路の路面に、鉄道車両を走らせるために敷設した構造物。※軌道条例（明治二三年）（1890）二条「馬車鉄道及其他之に準ずべき軌道布設の為」

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