Definition

1. Noun:
   • One of the bony segments of the spinal column: A vertebra is a single, small, irregularly shaped bone that forms part of the backbone or spine. Together, many vertebrae stack to create the flexible vertebral column that protects the spinal cord and supports the body.

Usage

• The word "vertebra" is a countable noun. Its standard plural form is "vertebrae" (pronounced /ˈvɜːrtɪbreɪ/ or /ˈvɜːrtɪbriː/).
• It is used in anatomical, medical, and biological contexts to describe the structure of the spine in humans and other vertebrates (animals with backbones).
• Example:

Examples

• Noun:
  • The doctor explained that the pain was caused by a damaged vertebra in her lower back.
  • The fossil revealed several well-preserved vertebrae from the dinosaur's tail.
  • Each vertebra has a central opening through which the spinal cord passes.

Advanced Usage

• "Vertebral" (adjective): Pertaining to a vertebra or the vertebrae.
  • The patient underwent surgery to relieve pressure on the vertebral nerve.
• "Intervertebral" (adjective): Situated between vertebrae.
  • A slipped disc is an intervertebral disc problem.

Variants and Related Words

• Vertebrae (n): The plural form of "vertebra."
• Vertebral (adj): Of or relating to the vertebrae or spinal column.
• Vertebrate (n/adj): (n) An animal possessing a backbone made of vertebrae; (adj) having a backbone.
  • Mammals, birds, and fish are all vertebrates.
• Invertebrate (n/adj): (n) An animal lacking a backbone; (adj) without a backbone.

Synonyms

• Spinal bone: A descriptive synonym.
• Backbone segment: A layman's term describing its function and location.

Notes on Meaning

• The term specifically refers to the individual bones. The entire structure is called the "vertebral column," "spinal column," or "spine."
• It is a key anatomical feature that distinguishes vertebrates from invertebrates in the animal kingdom.

Noun

1. one of the bony segments of the spinal column