The old violinist's haunting melody sent shivers down someone's spine as it echoed through the empty hall.

The sudden scream from the attic was sending shivers down someone's spine as they crept through the dark hallway.

The botanist noted that the cactus was spinescent, its stems armored with sharp needles.

Spinescence on young stems helps deter herbivores during the plant's vulnerable growth stages.

The botanist carefully documented the spinescences on each specimen, noting variations in size and orientation.