lacunal

/ləˈkjuːnəl/
adjective
  1. Relating to or having a gap, missing part, or cavity.
    • The lacunal structure of the fossil suggested it had once contained soft tissue.
    • The bone's lacunal spaces were clearly visible in the X-ray.
    • The scholar noted the lacunal nature of the historical record for that decade.
Synonyms
What does "lacunal" mean? | whatsthatwordmean | whatsthatwordmean