Last Updated：2025/11/22

(anatomy) A single cell of a muscle; each muscle fiber contains many myofibrils, the contractile unit of muscles.

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muscle fiber

Source Word

muscle fiber

countable uncountable

(anatomy) A single cell of a muscle; each muscle fiber contains many myofibrils, the contractile unit of muscles.

Japanese Meaning

筋繊維：筋肉を構成する単一の細胞であり、各筋繊維には多くの筋原線維が含まれ、これが筋肉の収縮単位となる。

During the biopsy, the doctor examined a single muscle fiber under the microscope.

生検中、医師は顕微鏡で一つの筋細胞を観察した。

Sense（1）

(anatomy) A single cell of a muscle; each muscle fiber contains many myofibrils, the contractile unit of muscles.

muscle fibers

（ plural ）