tomentum

• Botanik: dichter, filziger Haarfilz aus feinen Härchen oder Fasern auf Pflanzen; Anatomie: feines Netzwerk kleiner Blutgefäße, besonders in den Hirnhäuten oder im Gehirn.

A noun referring to a covering of fine hairs or filaments on a plant, or a network of small blood vessels in the brain.

1. Plant hair coveringC2formalscientific

   A dense layer of fine, soft hairs found on the surface of leaves, stems, or other plant parts.

   Behaarung von Pflanzen

   • The leaf's tomentum helps reduce water loss in dry climates.
   • Many alpine plants have a thick tomentum for insulation.
   • The tomentum on the stem gives it a fuzzy appearance.

   Synonymedownflufffuzzindumentumpubescencewool

2. Brain vascular networkC2formalmedical

   A network of tiny blood vessels located between the pia mater and the surface of the cerebral cortex.

   Gefäßnetz des Gehirns

   • The tomentum supplies blood to the outer layers of the brain.
   • Damage to the tomentum can affect cerebral circulation.
   • The surgeon carefully examined the tomentum during the procedure.