Definition

1. Noun:
   • The upper part of the breastbone: The manubrium is the broad, topmost segment of the sternum (breastbone), which articulates with the clavicles (collarbones) and the first pair of ribs.

Usage Examples

• Noun:
  • The surgeon carefully examined the manubrium during the procedure.
  • A fracture of the manubrium can result from significant chest trauma.

Advanced Usage

• Anatomical Context: In detailed anatomical descriptions, the manubrium is often discussed in relation to the "sternal angle" (the junction between the manubrium and the body of the sternum), a key landmark for medical professionals.
  • The sternal angle, located where the manubrium meets the gladiolus, is an important surface landmark.

Variants and Related Words

• Manubrial (adj): Pertaining to the manubrium.
  • The manubrial notch is a visible depression at the top of the sternum.

Synonyms

• Sternal manubrium: A more specific anatomical term.
• Presternum: An older or less common synonym for the manubrium.

Notes on Meaning

• This word is highly specific to human and vertebrate anatomy. It has no common idiomatic or figurative meanings. Its usage is almost exclusively technical, found in medical, biological, and anatomical contexts.

Noun

1. the upper part of the breastbone