musculus sternocleidomastoideus (noun)

1. In the eerie darkness of the haunted mansion, the protagonist felt a chilling sensation as the musculus sternocleidomastoideus seemed to move on its own.

2. As they embraced under the moonlight, her fingers gently traced the contours of his musculus sternocleidomastoideus, symbolizing the depth of their love.

3. The spacious and elegant living room was adorned with a stunning sculpture that highlighted the intricate details of the musculus sternocleidomastoideus.

4. In the gripping novel, the protagonist's tension was palpable as the villain tightened his grip on her musculus sternocleidomastoideus, a metaphor for his control over her life.