Definition

1. Adjective:
   • Having three cusps, points, or flaps. This term is primarily used in anatomical and biological contexts to describe structures with three distinct projections.

Usage

• The word tricuspid is a technical adjective. It is most commonly used to describe specific anatomical features, particularly in medicine and dentistry.
• It is typically placed before the noun it modifies (e.g., , ).

Examples

• Adjective:
  • The tricuspid valve in the heart regulates blood flow between the right atrium and right ventricle.
  • A tricuspid molar has three distinct cusps on its chewing surface.
  • The surgeon carefully repaired the damaged tricuspid leaflet.

Advanced Usage

• "Tricuspid atresia": A congenital heart defect where the tricuspid valve is abnormally developed or absent.
  • The newborn was diagnosed with tricuspid atresia and required immediate surgery.
• "Tricuspid regurgitation": A condition where the tricuspid valve does not close tightly, allowing blood to leak backward.
  • The echocardiogram revealed mild tricuspid regurgitation.

Variants and Related Words

• Bicuspid (adj): Having two cusps or points.
  • Premolar teeth are also known as bicuspids.
• Cuspid (n): A tooth with a single point; a canine tooth.
• Cusp (n): A pointed or projecting part, such as on a tooth or a heart valve leaflet.

Synonyms

• Three-cusped: Having three cusps.
• Triangular (in some descriptive contexts, though less precise): Having three corners or sides.

Antonyms

• Bicuspid: Having two cusps.
• Unicuspid: Having a single cusp.

Adjective

1. having three cusps or points (especially a molar tooth)
   • tricuspid molar
   • tricuspid valve