ETYM Latin tomentum a stuffing of wool, hair, or feathers: cf. French tomenteux.
1. (Biology) Densely covered with short matted woolly hairs; SYN. tomentous.
2. (Botany) Covered with densely matted filaments.
3. Bearing thickly matted hair or fur.
4. Tomentous; bearing thickly matted hairs.
5. Anatomy, network of minute blood vessels in the brain.