tomentum

IPA: toʊmˈɛntʌm

(botany) A mass of filamentous hairs on the leaf of a plant.
(zoology) A covering of fine, soft hairs; a pubescence.
(anatomy) A network of fine blood vessels between the pia mater and the cerebral cortex.

Examples of "tomentum" in Sentences

The winter buds are coated with rusty tomentum.
The egg is laid on the leaf underside, amongst the thick tomentum.
New growth is margined with a short but dense white woolly tomentum.
Shiny dark green on top, they have a soft white tomentum underneath.
The petioles are covered in brown tomentum and armed with sharp spines.
The young expanding leaves are whitish or pinkish with very soft tomentum.
The cap is pale to orange yellow with grayish brownish or reddish tomentum.
The new leaf spear and edges of the petioles are covered with a white tomentum.
Tomentum are fine hairs that may appear on the leaves and stems of angiosperms.
The ridged rachis is flattened on the bottom and also covered in hairy tomentum.