Added 9 October 2026 tomentum noun Categories: PlantsThe BodyObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about tomentum at Wordnik → Where our words come from → Filamentous hairlike growth on a plant. peach fuzz A network of tiny blood vessels between the cerebral surface of the pia mater and the cerebral cortex. Related Words: hairfuzzthrumtentaclethreadcapillamentcomaprotonemaoffsetmeristemtelome Back to today's word