psyllium
— Noun
– English
～ plantain of Mediterranean regions whose seeds swell and become gelatinous when moist and are used as a mild laxative
Plantago psyllium
— Noun
– English
～ plantain of Mediterranean regions whose seeds swell and become gelatinous when moist and are used as a mild laxative
psyop
— Noun
– English
～ military actions designed to influence the perceptions and attitudes of individuals, groups, and foreign governments
pt
— Noun
– English
～ a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits
PT boat
— Noun
– English
～ a small fast unarmored and lightly armed torpedo boat; P(atrol) T(orpedo) boat
ptah
— Noun
– English
～ a major Egyptian god; shaper of the world; father of gods and men; worshipped especially at Memphis
ptarmigan
— Noun
– English
～ large Arctic and subarctic grouse with feathered feet and usually white winter plumage
Pteretis
— Noun
– English
～ small genus sometimes included in genus Onoclea; in some classifications both genera are placed in Polypodiaceae
pteridaceae
— Noun
– English
～ one of a number of families into which the family Polypodiaceae has been subdivided in some classification systems; Pteridaceae is itself in turn sometimes further subdivided
Pteridium
— Noun
– English
～ a genus of ferns belonging to the family Dennstaedtiaceae
Pteridium esculentum
— Noun
– English
～ fern of southeastern Asia; not hardy in cold temperate regions
Pteridium aquilinum
— Noun
– English
～ large coarse fern often several feet high; essentially weed ferns; cosmopolitan
pteridological
— Adjective
– English
～ of or relating to the study of ferns
pteridologist
— Noun
– English
～ an expert in the study of ferns
pteridology
— Noun
– English
～ the branch of botany that studies ferns