genus Psilophyton
— Noun
– English
～ type genus of the Psilophytaceae: genus of small wiry herbaceous Paleozoic plants with underground rhizomes and apical sporangia
genus Psilotum
— Noun
– English
～ type genus of the Psilotaceae
genus Psithyrus
— Noun
– English
～ a large bee that resembles the bumblebee but lacks pollen-collecting apparatus and a worker caste
genus Psittacosaurus
— Noun
– English
～ most primitive genus of horned dinosaurs; early Cretaceous
genus Psittacus
— Noun
– English
～ type genus of the Psittacidae: usually restricted to the African grey
genus Psophia
— Noun
– English
～ type genus of the Psophiidae: trumpeters
genus Psophocarpus
— Noun
– English
～ species of tropical Asian and African climbing herbs
genus Psoralea
— Noun
– English
～ widely distributed genus of herbs or shrubs with glandular compound leaves and spicate or racemose purple or white flowers
Gestalt psychology
— Noun
– English
～ (psychology) a theory of psychology that emphasizes the importance of configurational properties
genetic psychology
— Noun
– English
～ the branch of psychology that studies the social and mental development of children
genus Psychopsis
— Noun
– English
～ epiphytic orchids of Central and South America formerly included in genus Oncidium
group psychotherapy
— Noun
– English
～ psychotherapy in which a small group of individuals meet with a therapist; interactions among the members are considered to be therapeutic
genus Psychotria
— Noun
– English
～ tropical chiefly South American shrubs and trees
genus Pteretis
— Noun
– English
～ small genus sometimes included in genus Onoclea; in some classifications both genera are placed in Polypodiaceae
genus Pteridium
— Noun
– English
～ a genus of ferns belonging to the family Dennstaedtiaceae
group Pteridospermae
— Noun
– English
～ used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order Cycadofilicales