Rachis (Noun)
Meaning 1
Axis of a compound leaf or compound inflorescence.
Classification
Nouns denoting plants.
Examples
- The rachis of the fern leaf is easily visible when held against the light, as the vascular tissue has darkened with age.
- Compound leaves like the walnut tree have a prominent rachis that connects the leaflets together.
- In the compound inflorescence of the lilac bush, the rachis stretches out to allow multiple seeds to form.
- Careful inspection of the dried specimen revealed a brittle rachis in the center of the feather palm's fronds.
- A faint line is visible along the length of the rachis in goldenrod plants when viewed under a microscope.
Meaning 2
The series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back".
Classification
Nouns denoting body parts.
Examples
- The rachis provides structural support and protection to the delicate spinal cord.
- The doctor examined the patient's x-rays carefully to determine if there was any damage to the rachis.
- A severe injury to the rachis can result in partial or complete paralysis.
- The rachis plays a crucial role in maintaining the overall posture and alignment of the body.
- After the accident, the athlete worried that she might have fractured her rachis.