perithelium

/ˌpɛrɪˈθiliəm/
noun
  1. The layer of connective tissue that surrounds small blood vessels, such as capillaries.
    • Scientists examined the perithelium under a microscope to study its role in circulation.
    • Inflammation of the perithelium can lead to leakage from capillaries.
    • The perithelium provides structural support to the smallest blood vessels.
Synonyms
What does "perithelium" mean? | whatsthatwordmean | whatsthatwordmean