Medical Definition of Trabecula

Trabecula: A partition which divides or partly divides a cavity.

  • One of the strands of connective tissue projecting into an organ that constitutes part of the framework of the organ as, for example, the trabeculae of the spleen.
  • One of a number of small interconnecting rods of bone making up a mass of spongy bone as, for example, the trabeculae within the skull.

The word "trabecula" is the diminutive of the Latin "trabes", a beam or plank of wood, as might be used in a supporting structure.

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Reviewed on 12/11/2018