せいぶん成分seibun
1.

The individual substances or elements that make up a particular material or compound, contributing to its overall nature and properties.

2.

The essential parts or factors that together form a complete sentence in grammar, including elements like the subject, predicate, and modifiers.

3.

In chemistry, the pure substances that constitute a compound or mixture, as well as the minimum number of distinct substances required to describe the composition of heterogeneous systems.

4.

In mathematics, the vectors obtained by resolving a single vector into its constituent parts along specified coordinate axes in a plane or space.

Example:

グリーンピースは鉄分が豊富で爪の色がよくなる成分が含まれている。

しゅせいぶん主成分shuseibun
1.

A critical component that is essential for the existence or stability of a particular substance or system, without which it would fail to function properly.

2.

A constituent that comprises a significant proportion of a material or product, playing a key role in its overall characteristics.

3.

In multivariate analysis, it refers to a few indicators that collectively represent the distinctive characteristics of individuals or entities.

ゆうこうせいぶん有効成分yuukouseibun
1.

A substance within a product that produces a desired effect or outcome, often found in pharmaceuticals or cosmetics.

2.

The key component in a formulation that is responsible for the intended therapeutic or functional properties, distinguishing it from inert or filler substances.

3.

The essential ingredient in a chemical formulation that actively contributes to its primary purpose, such as treating a condition or enhancing performance.

4.

An ingredient that has a specific biological or physiological impact, playing a critical role in the effectiveness of a product.

こうせいせいぶん構成成分kouseiseibun
1.

ある物やシステムを形成するために必須となる要素や部分。

2.

全体を形成する際に含まれる、特定の機能や特性を持つ成分。

3.

特定の構造や形を持つ集まりの中で、それを支える基本的な要素。

4.

複雑な体系や構造を構成するために相互作用する個々の部分や要素。