poltroon
— Adjective
– English
～ characterized by complete cowardliness
poltroonery
— Noun
– English
～ abject pusillanimity
polyamide
— Noun
– English
～ a polymer containing repeated amide groups
polyandrist
— Noun
– English
～ a woman with two or more husbands
polyandrous
— Adjective
– English
～ having more than one husband at a time
polyandry
— Noun
– English
～ polygamy in which a woman has more than one husband at a time
Polyangiaceae
— Noun
– English
～ bacteria living mostly in soils and on dung
Polyangium
— Noun
– English
～ type genus of the family Polyangiaceae: myxobacteria with rounded fruiting bodies enclosed in a membrane
polyanthus
— Noun
– English
～ florists' primroses; considered a complex hybrid derived from oxlip, cowslip, and common primrose
polyarteritis nodosa
— Noun
– English
～ a progressive disease of connective tissue that is characterized by nodules along arteries; nodules may block the artery and result in inadequate circulation to the particular area
polyarteritis
— Noun
– English
～ inflammation of several arteries
polyatomic
— Adjective
– English
～ of or relating to a molecule made up of more than two atoms
Polyborus cheriway audubonii
— Noun
– English
～ widespread from southern United States to Central America; rusty black with black-and-white breast and tail
Polyborus
— Noun
– English
～ a genus of Falconidae
Polybotria cervina
— Noun
– English
～ tropical American terrestrial fern with leathery lanceolate fronds; sometimes placed in genus Polybotrya
Polybotria
— Noun
– English
～ tropical American ferns; usually terrestrial when young but scandent later
Polybotrya
— Noun
– English
～ tropical American ferns; usually terrestrial when young but scandent later
Polybotrya cervina
— Noun
– English
～ tropical American terrestrial fern with leathery lanceolate fronds; sometimes placed in genus Polybotrya
polybutene
— Noun
– English
～ a polymer of butylene; used in lubricants and synthetic rubber