Definition

1. Noun:
   • The first part of the small intestine: The duodenum is the initial, relatively short section of the small intestine, immediately following the stomach. It is where the process of digestion continues with the addition of bile and pancreatic enzymes.

Usage

• The word "duodenum" is a specific anatomical term used in medical, biological, and health-related contexts. It is typically used with definite articles ("the duodenum") or possessive pronouns when referring to a specific entity.
• Example: "The food passes from the stomach into the duodenum."

Examples

• Noun:
  • The doctor explained that the ulcer was located in his duodenum.
  • Bile and pancreatic juices are secreted into the duodenum to aid digestion.
  • The duodenum is responsible for the continued breakdown of food.

Advanced Usage

• "Duodenal" (Adjective): Pertaining to the duodenum.
  • He was diagnosed with a duodenal ulcer.
• In medical terminology, it is often part of compound terms specifying location or condition (e.g., duodenitis, duodenoscopy). These are separate terms.

Variants and Related Words

• Duodenal (adj): Of or relating to the duodenum.
• Duodenitis (n): Inflammation of the duodenum. (A separate medical term).
• Duodenoscopy (n): Endoscopic examination of the duodenum. (A separate medical term).

Synonyms

• Proximal small intestine: A more general descriptive term, though not a perfect synonym as it may include more than just the duodenum.
• First part of the small intestine: A descriptive phrase.

Antonyms

• There is no direct antonym, as it is a specific body part. Contrasting terms could be other sections of the digestive tract, such as:
  • Stomach: The organ preceding the duodenum.
  • Jejunum: The section of the small intestine immediately following the duodenum.

Related Phrases / Collocations

• Duodenal ulcer: A peptic ulcer occurring in the duodenum.
• Duodenal papilla: The opening where bile and pancreatic ducts empty into the duodenum.
• Duodenal atresia: A congenital condition where the duodenum is blocked.

Noun

1. the part of the small intestine between the stomach and the jejunum