phugoidOf the motion of an aircraft, missile, or other flying object: continuously oscillating in a vertical plane due to the object pitching up and climbing, thus slowing down; then pitching down and descending, thus speeding up.
PhurjoenA chiwog of Chhume Gewog, Bumthang District, Bhutan.
PhurnaciteA proprietary brand of smokeless fuel in the form of coal briquettes.
PhussaThe name of the 21st of 27 named Buddhas immediately preceding Gautama.
phutA representation of the sound resembling the release of a blast of steam or exhaust gas; a representation of the sound of a fast but small puff of wind.
PhutballA strategic board game for two players, with some resemblance to checkers, in which the aim is to score "goals" by moving a piece over the opponent's goal line.
PhuthiA Nguni Bantu language spoken in southern Lesotho and parts of South Africa.
phycobilinAny of a group of bilins (pigments derived from porphyrins) found in some photosynthetic algae; they are open-chain tetrapyrroles related to mammalian bile pigments.
phycobiliproteinAny of a class of water-soluble proteins, present in cyanobacteria and certain algae, that capture light energy which is then passed on to chlorophylls during photosynthesis; the most important constituents of the phycobilisomes.
phycobilisomeA light-harvesting antenna in cyanobacteria, red algae and glaucophytes.
phycobiontAn algae that is a constituent of a lichen; an algal photobiont.
phycochromeA bluish-green pigment in certain blue-green algae.
phycocolloidAny of several algal-derived colloids, including alginates, carrageenans, and agars.
phycocyaninA pigment from the light-harvesting phycobiliprotein family, along with allophycocyanin and phycoerythrin, an accessory pigment to chlorophyll.
phycocyanobilinA blue phycobilin present in the phycobiliproteins allophycocyanin and phycocyanin, of which it is the terminal acceptor of energy.
phylacteryEither of two small leather cases containing scrolls with passages from the Torah, traditionally worn by a Jewish man (one on the arm (usually the left) and one on the forehead) and now sometimes by a woman at certain morning prayers as a reminder to obey the law as set out in the Bible; a tefilla.
phyleA local division of the people; a clan or tribe.
phylembryogenesisA theory put forth by Russian palaeontologist Severtsov, postulating that phylogenetic changes in organisms are conditioned by ontogenetic alterations, in that certain events are added, modified or deleted in the development of an embryo based on the events of ancestral development.
phylesisA course of evolutionary or phylogenetic development which modifies an organism or group of organisms without leading to the formation of a new species.
phyleticOf or pertaining to phylogeny; phylogenetic.
phyletismThe doctrine and practice of organizing churches along exclusive and nationalist lines, condemned as heretical by the Council of Constantinople in 1872.
phylloA type of dough, originating in Mediterranean cuisine, that is used in thin layers to make pastries (such as baklava and apple strudel) and pies and becomes very flaky when cooked.
phylloboliaIn Ancient Greece, the showering of a victorious athlete or bridal couple with leaves or flower petals.
phylloborateAny of a class of borate minerals with sheet-like structure.
phyllobothriidAny tapeworm of the family Phyllobothriidae
phyllobranchiaA crustacean gill composed of lamellae either side of a stem.
phyllocaridAny crustacean of the subclass Phyllocarida.
phylloceratidAny ammonite in the family Phylloceratidae.
phyllochronThe time interval between the sequential appearance of leaves on a plant (typically on a cereal)