10-letter words containing p, o, i, r
- protanopia — a defect of vision in which the retina fails to respond to red or green.
- proteanism — readily assuming different forms or characters; extremely variable.
- protecting — providing protection or shelter.
- protection — the act of protecting or the state of being protected; preservation from injury or harm.
- protective — having the quality or function of protecting: a protective covering.
- proteiform — changeable in form; multiform
- proteinase — any of a group of enzymes that are capable of hydrolyzing proteins.
- proteinoid — a polymer of amino acids resembling a biological polypeptide but formed abiotically: suggested as a possible intermediate in protein development during primitive earth conditions.
- proteinous — Biochemistry. any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the diet of all animals and other nonphotosynthesizing organisms, composed of 20 or more amino acids linked in a genetically controlled linear sequence into one or more long polypeptide chains, the final shape and other properties of each protein being determined by the side chains of the amino acids and their chemical attachments: proteins include such specialized forms as collagen for supportive tissue, hemoglobin for transport, antibodies for immune defense, and enzymes for metabolism.
- protension — duration
- protensity — the actuality of duration
- protensive — extended in dimension or extended in time.
- proteomics — the study of the functions, structures, and interactions of proteins; the study of the proteome.
- protervity — petulance
- protestive — an expression or declaration of objection, disapproval, or dissent, often in opposition to something a person is powerless to prevent or avoid: a protest against increased taxation.
- protistans — any of various one-celled organisms, classified in the kingdom Protista, that are either free-living or aggregated into simple colonies and that have diverse reproductive and nutritional modes, including the protozoans, eukaryotic algae, and slime molds: some classification schemes also include the fungi and the more primitive bacteria and blue-green algae or may distribute the organisms between the kingdoms Plantae and Animalia according to dominant characteristics.
- protocolic — relating to protocol
- protoctist — (in modern biological classifications) any unicellular or simple multicellular organism belonging to the kingdom Protoctista, which includes protozoans, algae, and slime moulds
- protogenia — the first woman born after the great flood of Zeus, daughter of Deucalion and Pyrrha.
- protogenic — (of a compound) able to donate a hydrogen ion (proton) in a chemical reaction
- prototypic — the original or model on which something is based or formed.
- protreptic — an educational book or speech
- protruding — to project.
- protrusile — capable of being thrust forth or extended, as the tongue of a hummingbird.
- protrusion — the act of protruding or the state of being protruded.
- protrusive — projecting or protuberant; thrusting forward, upward, or outward.
- provection — (in Celtic languages) the devoicing of a consonant
- proveditor — (in the Venetian republic) a senior civilian officer in charge of supplies, provisions, and artillery for the city
- proverbial — of, relating to, or characteristic of a proverb: proverbial brevity.
- providable — to make available; furnish: to provide employees with various benefits.
- providence — a state of the NE United States, on the Atlantic coast: a part of New England. 1214 sq. mi. (3145 sq. km). Capital: Providence. Abbreviation: RI (for use with zip code), R.I.
- provincial — belonging or peculiar to some particular province; local: the provincial newspaper.
- provisions — a clause in a legal instrument, a law, etc., providing for a particular matter; stipulation; proviso.
- provitamin — a substance that an organism can transform into a vitamin, as carotene, which is converted to vitamin A in the liver.
- prowlingly — in the manner of a prowl
- proximally — situated toward the point of origin or attachment, as of a limb or bone. Compare distal (def 1).
- pterylosis — the arrangement of feathers on a bird
- pultrusion — a process for manufacturing reinforced plastic products in which a bundle of glass fibres is pulled through a resin bath and then through a heated die to shape the resin
- punctiform — shaped like or of the nature of a point or dot.
- pundigrion — a pun
- puntillero — (in bullfighting) a worker, or assistant, who gives the coup de grâce to the fallen bull with a puntilla.
- pupigerous — (of an insect) having a pupa
- pupiparous — (of an insect) bearing fully developed larvae that are ready to pupate.
- purgatoire — a river in SE Colorado, flowing NE to the Arkansas River. 186 miles (299 km) long.
- purporting — to present, especially deliberately, the appearance of being; profess or claim, often falsely: a document purporting to be official.
- put in for — to request or apply for
- pyatigorsk — a city in the SW Russian Federation in Europe, in Caucasia.
- pyramidion — a miniature pyramid, as at the apex of an obelisk.
- pyranoside — a glycoside containing a pyran ring structure.
- pyrazoline — any of the group of heterocyclic compounds containing three carbon atoms, two adjacent nitrogen atoms, and one double bond in the ring.