Definition

1. Noun:
   • A small, tube-shaped sac attached to the large intestine: The "vermiform appendix" is a narrow, closed tube connected to the first part of the large intestine (the cecum). It is considered a vestigial organ, meaning it has lost most or all of its original function through evolution. The name "vermiform" means "worm-shaped," describing its appearance.

Examples of Usage

• Noun:
  • The surgeon removed the inflamed vermiform appendix.
  • Pain in the lower right abdomen can be a sign of trouble with the vermiform appendix.
  • While its function in humans is not entirely clear, the vermiform appendix may play a role in immune system support.

Advanced Usage

• "Vestigial" nature: The term is often discussed in biological and medical contexts as an example of a vestigial structure, an organ that has become functionless in the course of evolution.
  • The human vermiform appendix is a classic example cited in discussions of vestigial organs.

Variants and Related Words

• Appendix (n): The common, shortened form of "vermiform appendix" used in general and medical language.
  • He had to have his appendix removed.
• Appendicitis (n): The medical condition of inflammation of the vermiform appendix.
  • Appendicitis is a medical emergency.
• Cecum (n): The pouch-like beginning of the large intestine to which the vermiform appendix is attached.

Synonyms

• Appendix: The most direct and commonly used synonym.
• Vestigial structure: A general term for an anatomical feature like the appendix that has lost its function.

Noun

1. a vestigial process that extends from the lower end of the cecum and that resembles a small pouch