たんいつ単一tan'itsu
1.

Describing a state of being that exists as one distinct entity, without any companions or additional elements, emphasizing its singularity.

2.

Referring to a composition or structure that consists exclusively of a single type or category, devoid of any mixed varieties or components.

3.

Indicating the quality of being unique or solitary, often used in contexts highlighting a singular existence or identity.

4.

Denoting a specific kind of battery that is recognized as the largest in a standard cylindrical format, primarily associated with a voltage of approximately 1.5 volts.

Example:

ねじ、てこ、くさび、滑車などは単一機械と呼ばれる。

たんいつせい単一性tan'itsusei
1.

一つのものとしての性質や状態を持っていることを示す概念。

2.

複数の要素や部分があっても、それらが一体として機能する特性のこと。

3.

異なる部分があっても、それらが調和し、一つの全体を形成する性質。

たんいち単一tan'ichi
1.

A term describing the condition of being singular or alone, indicating that there is only one instance or individual without any others mixed in.

2.

Refers specifically to a type of cylindrical battery that is the largest amongst its common variants, often used in portable devices.

3.

Denotes a material or element that consists entirely of one type, without any other substances intermixed.