13-letter words containing s, p, o, i
- periodontosis — rapidly advancing juvenile periodontitis.
- perissodactyl — having an uneven number of toes or digits on each foot.
- perlustration — the act of perlustrating; a thorough inspection or survey, esp of letters for purposes of surveillance
- perscrutation — a very careful exploration or inspection
- perseveration — the act or process of perseverating.
- persian melon — a round variety of muskmelon having a green, reticulate, unribbed rind and orange flesh.
- personalistic — Also called personal idealism. a modern philosophical movement locating ultimate value and reality in persons, human or divine.
- personalities — the visible aspect of one's character as it impresses others: He has a pleasing personality.
- perspicacious — having keen mental perception and understanding; discerning: to exhibit perspicacious judgment.
- petit treason — the killing of a husband by his wife, of a lord by his servant, or of an ecclesiastic by a subordinate ecclesiastic.
- petroliferous — containing or yielding petroleum
- petrophysical — relating to the analysis of the constitution and characteristics of rocks
- phelloplastic — an image or a representation that has been fashioned from cork
- phenomenalism — the doctrine that phenomena are the only objects of knowledge or the only form of reality.
- phenoxy resin — any of a class of resins derived from polyhydroxy ethers
- philippopolis — Greek name of Plovdiv.
- philo judaeus — c20 b.c.–a.d. c50, Alexandrian Jewish theologian and philosopher.
- philosophical — of or relating to philosophy: philosophical studies.
- philosophizer — to speculate or theorize, usually in a superficial or imprecise manner.
- phlogisticate — to integrate or blend phlogiston with
- phong shading — (graphics) A model of how light is reflected from surfaces used extensively in three dimensional graphics to generate visually realistic images.
- phonocamptics — the branch of acoustics dealing with echoes
- phony disease — a disease of peaches, characterized by dwarfing, dark-green leaves, premature leafing and flowering, and the production of reduced numbers of small fruit, caused by a virus, Nanus mirabilis.
- phosphokinase — an increase in the amount of creatine phosphokinase that is released into the bloodstream when a muscle becomes injured
- phospholipase — any of a group of enzymes that catalyze the breaking down of phospholipids.
- photo-sharing — the publishing of digital photographs on the internet
- photo-stating — a camera for making facsimile copies of documents, drawings, etc., in the form of paper negatives on which the positions of lines, objects, etc., in the originals are maintained.
- photoacoustic — optoacoustic
- photochromism — the reversible transformation of something's colour due to exposure to electromagnetic radiation such as sunlight
- photodynamics — the science dealing with light and its effects on living organisms.
- photoemission — photoelectric effect.
- photofinisher — a person whose profession is photofinishing
- photophoresis — the move away from a strong light source by previously suspended particles in a gas
- photopositive — pertaining to a substance whose conductivity increases upon absorption of electromagnetic radiation.
- photovoltaics — (used with a singular verb) a field of semiconductor technology involving the direct conversion of electromagnetic radiation as sunlight, into electricity.
- phraseologist — a person who treats of or is concerned with phraseology.
- physharmonica — a keyboard musical instrument fitted with free reeds, and which is an early form of harmonium
- physics model — a variety of software illustrating the movement of objects in reality, used by designers of video games to improve verisimilitude
- physiognomies — the face or countenance, especially when considered as an index to the character: a fierce physiognomy.
- physiographic — the science of physical geography.
- physiological — of or relating to physiology.
- physiotherapy — physical therapy.
- physoclistous — having the air bladder closed off from the mouth.
- physostigmine — an alkaloid, C 1 5 H 2 1 N 3 O 2 , used in the treatment of Alzheimer's disease to raise the level of the neurotransmitter acetylcholine and also as a miotic in glaucoma.
- phytocoenosis — the plants of a given area considered as a whole.
- phytosanitary — of or relating to the health of plants
- pianississimo — (of a piece of music) to be played even more quietly or softly than pianissimo; abbreviated as ppp
- pick holes in — an opening through something; gap; aperture: a hole in the roof; a hole in my sock.
- pictorialness — the state of being pictorial
- piece of piss — something easily obtained of achieved