tomentum

• Существительное, обозначающее покров из тонких волосков или нитей на растении, или сеть мелких кровеносных сосудов в головном мозге.

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.

   Волосяной покров растений

   • 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.

   Synonymsdownflufffuzzindumentumpubescencewool

2. Brain vascular networkC2formalmedical

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

   Сосудистая сеть мозга

   • 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.