noun. one of the segments into which a myofibril is divided.
- -mere (English)
- μέρος (Ancient Greek (to 1453))
- sarco- (English)
- σάρξ (Ancient Greek (to 1453))
Example sentences of the word sarcomere
1. Noun, singular or mass
The very middle of a sarcomere contains only thick filaments because thin filaments do not extend completely inward from the two ends of the sarcomere, regions called Z-lines.