phenylketonuriaA metabolic disorder in which individuals lack the liver enzyme phenylalanine hydroxylase (PAH) which is needed to metabolize the amino acid phenylalanine.
phenylpropanoidAny of a class of plant-derived organic compounds that are biosynthesized from the amino acid phenylalanine
phenylpropanolamineAn adrenergic drug used to relieve allergic reactions, to treat respiratory infections and to suppress the appetite.
phenylpropeneAny of a class of phenylpropanoids in which a benzene ring has an allyl group attached to it. They are precursors for a variety of insecticides.
phenylthiazoleAny of three isomeric phenyl derivatives of thiazole
phenylthiocarbamideThe N-phenyl derivative of carbamide; it is either tasteless or has a bitter taste, depending on the genetic makeup of the person tasting it, who is either a nontaster or a taster, respectively.
phenylthiohydantoinAny phenyl derivative of a thiohydantoin, but especially one formed from an amino acid in the Edman method of protein degradation
pheochromocytomectomyThe surgical procedure to remove a pheochromocytoma, a rare adrenal gland tumor that releases excessive amounts of hormones such as adrenaline.
pheonA bearing representing the head of a dart or javelin, with long barbs which are engrailed on the inner edge.
pheophorbideAny of several breakdown products of pheophytin
pheophytinA chlorophyll from which the central magnesium atom has been removed
pheophytinaseAn enzyme that degrades chlorophyll to form pheophytin
pheoplastA plastid, containing brown pigment, found in diatoms, dinoflagellates and brown algae
PherecrateanConsisting of three prosodic feet, normally a spondee, dactyl, and spondee (or trochee), but admitting of some variations.
PherecratesA celebrated Athenian poet of the Old Comedy, living in the fifth century BCE (born after Crates and Cratinus but before Aristophanes, Eupolis, and Plato Comicus – so between c. 519 and c. 446 BCE), victorious at least thrice at the City Dionysia and the Lenaia in the 440s–430s, and inventor of the Pherecratean metre.
PherecraticOf or relating to the Ancient Greek poet Pherecrates (Φερεκράτης).
PherecydesAn Ancient Greek thinker from the island of Syros, who authored a cosmogony that bridged the mythological thought of Hesiod and pre-Socratic philosophy (fl. 6th century BC)
pheromonallyIn terms of, or by means of, pheromones.
pheromoneA chemical secreted by an animal, especially an insect, that affects the development or behavior of other members of the same species, functioning often as a means of attracting a member of the opposite sex.
phetharbitalA barbiturate derivative with anticonvulsant effects and relatively weak sedative action.
phewUsed to express relief of tension, fatigue, or surprise.
pheweeSynonym of phew (“expressing relief, amazement, or disgust and rapid exhalation at a smell.”).
phiΦ, the 21st letter of the Euclidean and modern Greek alphabet, usually romanized as "ph".
phialA bottle or other vessel for containing a liquid; originally any such vessel, especially one for holding a beverage; now (specifically), a small, narrow glass bottle with a cap used to hold liquid chemicals, medicines, etc.
phialaA bowl-shaped drinking-vessel used in Ancient Rome.
PhiladelphiaThe largest city in Pennsylvania, United States, and the county seat of coterminous Philadelphia County; the former capital of the United States.
PhiladelphianA person who originates from or lives in Philadelphia.
philanthropinismA 19th-century German system of education, aiming to reform society by teaching children to become philanthropic, natural and rational beings.
philanthropinistAn advocate of, or believer in, philanthropinism.
PhilanthropinumA reformist, progressive school in Dessau, Germany from 1774 to 1793, based on the principles of philanthropinism.