Definition of mestome in English:

mestome

(also mestom)

Pronunciation /ˈmɛstəʊm/

noun

historical Botany
  • The conducting elements and associated parenchyma of a vascular bundle (as opposed to the strengthening mechanical elements).

Origin

Late 19th century; earliest use found in George Goodale (1839–1923). From German Mestom from ancient Greek μέστωμα from μεστοῦν to fill up (from μεστός full, of unknown origin) + -ωμα.