Added 10 October 2026 piperaceae noun Categories: PlantsObscure Words noun ! Definition from WordNet 3.1, Princeton University. More about piperaceae at Wordnik → Where our words come from → Tropical woody vines and herbaceous plants having aromatic herbage and minute flowers in spikelets. Related Words: peperomiaarecaceaeeuphorbiaceaephyllanthaceaepiperasphodelaceaemalpighiaceaesapotaceaerhizophoraceaecapparaceae Back to today's word