一いち元げん

noun, noun which may take the genitive case particle 'no'

unitary; single element; single source or principle

Used mostly in formal or abstract compounds and modifiers for something treated as one unified element, source, principle, or system.

• 顧こ客きゃく情じょう報ほうを一いち元げん管かん理りする仕し組くみを作つくった。

  We created a system to manage customer information in one centralized place.

• この理り論ろんは社しゃ会かいを一いち元げんの原げん理りで説せつ明めいしようとする。

  This theory tries to explain society by a single principle.

noun

one era; single era name

Rare historical use, most familiar in the phrase 一世一元, referring to using one era name for one reign or sovereign.

• 明めい治じ以い後ご、日本にほんでは一いっ世せい一いち元げんの制せいが採とられた。

  From the Meiji period onward, Japan adopted the system of one era name per reign.

noun

one unknown; one variable

Mathematical term used in compounds such as 一元方程式 and 一元一次方程式, meaning that an equation has one unknown quantity.

• 授じゅ業ぎょうで一いち元げん一いち次じ方ほう程てい式しきを解といた。

  We solved linear equations in one unknown in class.