Showing 2,201 to 2,300 of 3,038.
- PHENOLA caustic, poisonous, white crystalline compound, C6H5OH, derived from benzene and used in resins, plastics, and pharmaceuticals and in dilute form as a disinfectant and antiseptic
- PHENOTYPEThe appearance of an organism based on a multifactorial combination of genetic traits and environmental factors, especially used in pedigrees.
- PHENYLA univalent hydrocarbon radical, C6H5 (benzene minus one hydrogen atom), and the basis of an immense number of aromatic derivatives.
- PHILANDERA lover.
- PHILATELYStamp collecting.
- PHILOLOGUEA philologist.
- PHILOLOGYThe humanistic study of texts and their languages, especially ancient or classical languages.
- PHILOSOPHYAn academic discipline that seeks truth through reasoning rather than empiricism, often attempting to provide explanations relating to general concepts such as existence and ration
- PHILOXENIALove of strangers; eagerness to show hospitality.
- PHILOXENIASLove of strangers; eagerness to show hospitality.
- PHILTERA kind of potion, charm, or drug; especially a love potion intended to make the drinker fall in love with the giver.
- PHILTRUMThe shallow vertical groove running from the nasal septum to the center of the upper lip.
- PHLEBOTOMYThe opening of a vein, either to withdraw blood or for letting blood; venesection.
- PHLEGMOne of the four humors making up the body in ancient and mediaeval medicine; said to be cold and moist, and often identified with mucus.
- PHLEGMASIAAn inflammation, especially of the internal organs.
- PHLEGMATICNot easily excited to action or passion; calm; sluggish.
- PHLEGMONA solid mass formed by inflamed connective tissue, such as forms around an appendix in appendicitis.
- PHLOEMA vascular tissue in land plants primarily responsible for the distribution of sugars and nutrients manufactured in the shoot.
- PHLOGISTICInflammatory; pertaining to inflammations and fevers.
- PHLOGISTONThe hypothetical fiery principle formerly assumed to be a necessary constituent of combustible bodies and to be given up by them in burning.
- PHLORIZINSA glucoside of phloretin, phloretin-2'-β-D-glucopyranoside, found in unripe apples.
- PHLOXAny flowering plant of the genus Phlox.
- PHLYCTENAA small vesicle.
- PHOBIAAn irrational, abnormal, or obsessive fear (of something).
- PHOCAA seal.
- PHOCINEPertaining to true seals (also known as earless seals, as opposed to eared seals such as sea lions); seallike.
- PHOCOMELIAA congenital disorder of the limbs, the affected person being born with abnormally short or missing bones and flipper-like hands or feet.
- PHOENIXA mythological bird, said to be the only one of its kind, which lives for 500 years and then dies by burning to ashes on a pyre of its own making, ignited by the sun. It then arise
- PHONALOf, relating to, or produced by, the voice.
- PHONATIONThe process of producing vocal sound by the vibration of the vocal folds that is in turn modified by the resonance of the vocal tract.
- PHONEMEAn indivisible unit of sound in a given language. A phoneme is an abstraction of the physical speech sounds (phones) and may encompass several different phones.
- PHONETICRelating to the sounds of spoken language.
- PHONICOf or pertaining to sound; of the nature of sound; acoustic.
- PHONONThe quantum of acoustic or vibrational energy (sound), considered a discrete particle rather than a wave.
- PHORESYAn association between two organisms in which one (e.g. a mite) travels on the body of another, without being a parasite.
- PHORMINXA kind of lyre used by the Ancient Greeks.
- PHOSGENEcarbonyl chloride
- PHRASEA short written or spoken expression.
- PHRASEOLOGYStudy of set or fixed expressions.
- PHREATICOf or pertaining to ground water; involving explosively rapid heating of ground water by magma.
- PHRENESISphrenitis
- PHRENICOf or pertaining to the diaphragm
- PHRENITISMadness, especially as caused by inflammation of the brain; encephalitis, encephalomeningitis, or meningitis.
- PHTHISICA wasting illness of the lungs, such as asthma or tuberculosis; consumption; phthisis.
- PHTHISISAn atrophy of the body or part of the body, especially pulmonary tuberculosis.
- PHYLAXISProtection against infectious disease.
- PHYLEA local division of the people; a clan or tribe.
- PHYLLITEA type of metamorphic rock formed from clay-rich sediments called pelites.
- PHYLLODEA flattened petiole or leaf rachis that resembles and functions as a leaf, and may or may not be combined with an actual lamina.
- PHYLLODIUMphyllode
- PHYLONAll of the organisms descending from a given common ancestor, regarded as a race, tribe, vel sim.; a clade.
- PHYLUMA rank in the classification of organisms, below kingdom and above class; also called a divisio or a division, especially in describing plants; a taxon at that rank
- PHYSICIANA practitioner of physic, i.e. a specialist in internal medicine, especially as opposed to a surgeon; a practitioner who treats with medication rather than with surgery.
- PHYSIOLOGYA branch of biology that deals with the functions and activities of life or of living matter (as organs, tissues, or cells) and of the physical and chemical phenomena involved.
- PHYSISNature, as contrasted with law or custom.
- PHYTONOne of the parts which by their repetition make up a flowering plant, each being a single joint of a stem with its leaf or leaves.
- PICRITEA variety of high-magnesium olivine basalt.
- PILCROWThe symbol ¶. A symbol designating the beginning of a new paragraph. A symbol designating a paragraph break.
- PILEORHIZAA cap of cells covering the growing extremity of a root; a rootcap.
- PILOTA person who steers a ship, a helmsman.
- PINACOIDThe face of a crystal parallel to two of the axes.
- PIRACYRobbery at sea, a violation of international law; taking a ship away from the control of those who are legally entitled to it.
- PIRATEA criminal who plunders at sea; commonly attacking merchant vessels, though often pillaging port towns.
- PIRATICAlternative form of piratical.
- PIRATICALOf, pertaining to, or similar to pirates.
- PISTACHIOA deciduous tree (Pistacia vera) grown in parts of Asia for its drupaceous fruit.
- PITHECOIDOf or pertaining to the anthropoid apes.
- PITHOSA large ceramic jar used by certain ancient civilizations that bordered the Mediterranean.
- PITYROIDHaving the form of, or resembling, bran.
- PLACOIDPlatelike; having irregular, platelike, bony scales, often bearing spines; pertaining to the placoid fish
- PLAICESeveral similar marine flatfish of the righteye flounder family Pleuronectidae: Pleuronectes platessa (European plaice), commonly found in the North Sea and Irish Sea, with smooth
- PLANETEach of the seven major bodies which move relative to the fixed stars in the night sky—the Moon, Mercury, Venus, the Sun, Mars, Jupiter and Saturn.
- PLANETICOf or relating to planets; planetary.
- PLANKA long, broad and thick piece of timber, as opposed to a board which is less thick. A flat piece of wood on which to cook fish, so that the wood provides flavor and helps to produc
- PLANKTERA single organism of plankton.
- PLASMAA state of matter consisting of partially ionized gas and electrons.
- PLASMATICOf or pertaining to (blood) plasma.
- PLASTICA synthetic, solid, hydrocarbon-based polymer, whether thermoplastic or thermosetting.
- PLASTIDAny of various organelles found in the cells of plants and algae, often used for photosynthesis.
- PLASTRONThe nearly flat part of the shell structure of a tortoise or other animal, similar in composition to the carapace.
- PLATEA slightly curved but almost flat dish from which food is served or eaten.
- PLATYPUSA semiaquatic monotreme from eastern Australia with a bill resembling that of a duck, that has a mole-like body, a tail resembling that of a beaver, a waterproof pelt, and flat web
- PLATYSMAA superficial muscle of the human neck that overlaps the sternocleidomastoid.
- PLAZAA town's public square.
- PLECTRUMA small piece of plastic, metal, ivory, etc., for plucking the strings of a guitar, lyre, mandolin, etc.
- PLEIOTROPYThe influence of a single gene on multiple phenotypic traits; pleiotropism.
- PLEONThe abdomen of a crustacean.
- PLEONASMRedundancy in wording.
- PLEONEXIAExcessive or insatiable greed, avarice, covetousness, the desire to have more, a greedy desire for certain goods.
- PLETHORAAn excessive amount or number; an abundance.
- PLETHORICSuffering from plethora; ruddy in complexion, congested or swollen with blood.
- PLEURONA lateral sclerite of a thoracic segment of an arthropod between the tergum and the sternum.
- PLEUSTONThe organisms that live floating at the surface of water.
- PLEXORA hammer (or other instrument) used to test a person's reflexes.
- PLINTHA block or slab upon which a column, pedestal, statue or other structure is based.
- PLUTOCRATSomeone who rules by virtue of his or her wealth.
- PLYOMETRICSA form of exercise that involves the rapid stretching and contracting of muscles to develop muscular power.
- PNEUMAA neume.
- PNEUMATICOf, relating to, or resembling air or other gases
- PNEUMATOLOGYThe study of spiritual beings and phenomena, especially the interactions between humans and God.