Ord på engelsk der begynder med P som er valideret

• Pteridium — Navneord – Engelsk ～ a genus of ferns belonging to the family Dennstaedtiaceae
• Pteridium esculentum — Navneord – Engelsk ～ fern of southeastern Asia; not hardy in cold temperate regions
• Pteridium aquilinum — Navneord – Engelsk ～ large coarse fern often several feet high; essentially weed ferns; cosmopolitan
• pteridological — Tillægsord – Engelsk ～ of or relating to the study of ferns
• pteridologist — Navneord – Engelsk ～ an expert in the study of ferns
• pteridology — Navneord – Engelsk ～ the branch of botany that studies ferns
• Pteridophyta — Navneord – Engelsk ～ containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta
• pteridophyte — Navneord – Engelsk ～ plants having vascular tissue and reproducing by spores
• pteridosperm — Navneord – Engelsk ～ an extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae)
• Pteridospermae — Navneord – Engelsk ～ used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order Cycadofilicales
• Pteridospermaphyta — Navneord – Engelsk ～ used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order Cycadofilicales
• Pteridospermopsida — Navneord – Engelsk ～ extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies
• pteriidae — Navneord – Engelsk ～ pearl oysters
• pterion — Navneord – Engelsk ～ the craniometric point in the region of the sphenoid fontanelle
• Pteris multifida — Navneord – Engelsk ～ Asiatic fern introduced in America
• Pteris — Navneord – Engelsk ～ large genus of terrestrial ferns of tropics and subtropics; sometimes placed in family Polypodiaceae
• Pteris cretica — Navneord – Engelsk ～ cultivated in many varieties as houseplants
• Pternohyla — Navneord – Engelsk ～ burrowing tree frogs
• Pternohyla fodiens — Navneord – Engelsk ～ terrestrial burrowing nocturnal frog of grassy terrain and scrub forests having very hard upper surface of head; of the United States southwest
• Pterocarpus indicus — Navneord – Engelsk ～ tree native to southeastern Asia having reddish wood with a mottled or striped black grain

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