12-letter words containing p, a, i, l, o
- white poplar — Also called abele. an Old World poplar, Populus alba, widely cultivated in the U.S., having the underside of the leaves covered with a dense silvery-white down.
- wild apricot — apricot (def 4).
- williamsport — a city in central Pennsylvania, on the Susquehanna River.
- woolly aphid — any plant louse of the family Aphididae, characterized by a waxy secretion that appears like a jumbled mass of fine, curly, white cottony or woolly threads, as Eriosoma lanigerum (woolly apple aphid or American blight) and Prociphilus tessellatus (woolly alder aphid)