Skip to content A B C D E F G H I J K L M N O P Q R S T U V W X Y Z polyhalite A mineral usually occurring in fibrous masses, of a brick-red color, being tinged with iron, and consisting chiefly of the sulphates of lime, magnesia, and soda. polyhaloalkane Any of very many aliphatic organic compounds derived from a hydrocarbon by the replacement of two or more hydrogen atoms with those of a halogen polyhalogenated Halogenated with multiple halogen atoms. polyhalogenation The process of making something polyhalogenated. polyhalogeno (in combination) Containing two or more halogen atoms polyhandicap A handicap involving multiple disabilities polyhandicapped Having more than one handicap; multidisabled. polyhaploid Having many unpaired chromosomes polyhaptenic Having multiple haptens polyharmonic Consisting of multiple harmonics polyharmony Music that is played in more than one key at once, creating an aesthetically pleasing harmonic sound. polyhe A pattern constructed from a polyhex by removing half of each hexagon such that they remain connected polyhedral Of, pertaining to or derived from a polyhedron. polyhedrality The condition of being polyhedral polyhedrally In a polyhedral manner. polyhedrane any polycyclic hydrocarbon, of general formula (CH)ₙ, having a skeleton that corresponds to a polyhedron polyhedric Polyhedral; many-sided. polyhedrin A protein that forms the crystalline matrix of viral polyhedral bodies polyhedroid polychoron polyhedrometry The measurement of polyhedra. polyhedron A solid figure with many flat faces and straight edges. polyhedrosis Any of several diseases of insect larvae that are caused by the polyhedral viruses, family Baculoviridae. polyhedrous polyhedral; having multiple faces or facets. polyhedrovirus nuclear polyhedrosis virus polyhelicene Synonym of helicene. polyherbal Made from multiple herbs polyheterocycle A polymer composed of heterocyclic monomers polyheterocyclic Containing many heterocyclic rings polyhex A polyform made by joining one or more regular hexagons edge to edge in various arrangements. polyhexamethylenebiguanide polyhexanide polyhexanide polyhexamethylene biguanide, a polymer used as a disinfectant and antiseptic polyhexose Any polysaccharide formed from hexose units polyhierarchical Relating to a polyhierarchy. polyhierarchy A hierarchical relationship (tree) in which at least one child has more than one parent polyhistidine Several histidine residues linked together (usually at least six). polyhistor Someone gifted or learned to a great extent or in multiple disciplines; a great scholar. polyhistorian Synonym of polyhistor. polyhistoric Synonym of polyhistorical. polyhistorical Dealing with many histories or historical periods. polyholohedral holohedral in multiple ways polyholohedry The condition of being polyholohedral polyhomeostatic Describing the mutual interaction of multiple homeostatic systems polyhomeotic Having many homeoses polyhomonucleotide A polynucleotide composed of repeats of a single nucleotide polyhormonal Involving or relating to more than one hormone. polyhostal Having multiple hosts. polyhouse A polytunnel; a greenhouse or tunnel made of polyethylene, used to grow plants that require a higher temperature and/or humidity. polyhued Being multiple hues. polyhumic Feeding on soil surface. polyhybrid a hybrid whose parents differ in several ways polyhydramnic Polyhydramniotic. polyhydramnios An excess of amniotic fluid in the amniotic sac. polyhydramniotic Of, relating to, or characterised by polyhydramnios. polyhydric containing two or more hydroxy groups polyhydride Any compound containing many hydride moieties polyhydrite An amorphous aluminosilicate of iron with some manganese. polyhydrocarbon Any polymeric hydrocarbon polyhydrogenated hydrogenated such that hydrogen is attached to multiple double bonds polyhydroxy Having three or more hydroxy functional groups. polyhydroxyalkanoate Any of a group of linear polyesters produced in nature by bacterial fermentation. polyhydroxyalkanoic Describing an alkanoic acid that has multiple hydroxy substituents polyhydroxybutyrate Any polyester derived from a hydroxybutyric acid polyhydroxyethylmethacrylate A polymer, with chemical formula (C₆H₁₀O₃)ₙ, that forms a hydrogel in water. polyhydroxylated Having many hydroxyl substituents. polyhydroxyoctanoate A biodegradable biopolymer that is a derivative of polyhydroxyalkanoate. polyhydroxyphenol Any compound that has multiple phenolic hydroxyl groups polyhydroxyvalerate A biodegradable polymer used in bioplastics. Polyhymnia The Muse of sacred music. Polyhymnian Of or relating to Polyhymnia, the Ancient Greek Muse of sacred music. polyiamond A polyform made by joining one or more equilateral triangles edge to edge in various arrangements, with every polyiamond corresponding to a polyhex. polyideic Involving more than one idea. polyideism The presence of several ideas in the mind at the same time. Polyidus A male given name. polyimide Any polymer whose monomers are imides; used to make high-temperature resins polyinhalant A mixture of inhalants. polyinnervation innervation with several stimuli polyinosine A polymeric form of inosine polyinosinic Of or pertaining to polyinosinic acid polyinstantiation Instantiation into multiple independent instances. polyinstanton That involves multiple instantons polyinsular Having many islands or consisting of multiple islands. polyiodide A iodide having more than one atom of iodine in the molecule. polyion any multiply charged ion; a polycation or polyanion. polyionic Of, pertaining to, or containing polyions polyisobutadiene Synonym of polyisoprene (especially in the rubber industry) polyisobutene A polymer of isobutene; butyl rubber. polyisobutylene Any polymer composed of isobutylene monomers polyisocyanate Any compound containing multiple isocyanate functional groups polyisocyanurate A form of polyurethane polymer, based on cyanuric acid, formed from a polyhydroxy alcohol and a diisocyanate; it forms foams that are used for thermal insulation polyisoprene Any polymer whose constituent monomer is isoprene; especially natural, and some synthetic, rubbers polyisoprenoid Any isoprenoid having many isoprene units polyisoprenol Any polyisoprenoid alcohol polyisoprenyl Related to or composed of a polyisoprene polyisoprenylated Modified by the addition of many isoprenoid groups polyisotopic That has many stable isotopes polykaryocyte A cell that has many nuclei polykaryocytic Relating to polykaryocytes polykaryon A multinuclear cell polykaryonic Relating to polykaryons polykaryotic That has polynuclear cells polykatoikia A type of concrete urban housing block in postwar Greece. polykay A statistic that is a certain kind of linear combination of sample moments. (See reference for details.) polyketal Synonym of polyacetal. polyketide Any polymer whose monomer is a ketide. polyketidic Relating to or composed of polyketides. polyketomycin A tetracyclic quinone glycoside produced by Streptomyces polyketone Any of several polymers whose repeat units are ketones polyketonic relating to polyketones polykinetic Relating to polykinetids polykinetid A structure, in some protozoa, consisting of a kinetid composed of three or more kinetosomes connected to fibrillar structures. polyking a polyplet polykite A polyform constructed from quadrilaterals obtained from the superimposition of a triangular and hexagonal grid. polylactate Synonym of polylactic acid. polylactic Of or pertaining to a polymer of lactic acid or its derivatives polylactide polylactic acid polylactone Any (sometimes cyclic) polymer whose monomers are hydroxy acids polylactosamine A polysaccharide having lactosamine components polylaminated Having several layers of lamination. polylateral Involving multiple parties, including nonstate actors. polylectal Concerning multiple language variants. polylectic Of or relating to an insect (especially a bee) which collects pollen from the flowers of a variety of unrelated plants. polylecty The condition of being polylectic. polylege An insect that collects pollen from the flowers of a variety of unrelated plants. polylemma A circumstance in which a choice must be made between multiple options that seem equally undesirable polyless Without any polymorphs (magical transformations). polyleucine Any polypeptide (or segment of a protein) consisting of leucine moieties only polyligated (Of an atom) ligated to two or more other atoms polyligation ligation to two or more atoms polyline A continuous line composed of one or more line segments. polylineal Having or being composed of many lines. polylineality The quality of having or being composed of many lines. polylinear Involving many linear functions polylinearity The condition of being polylinear polylingual of or pertaining to multiple languages; multilingual polylingualism Multilingualism. polylinguist A person who is fluent in numerous languages. polylinker A short sequence of DNA containing several restriction enzyme recognition sites that is contained in cloning vectors polyliteral Relating to polygraphy or ciphering; cryptographic. polylith A prehistoric monument consisting of many stones. polylithic Having a massive, mutable structure that permits individual variations. polylithionite A phyllosilicate mineral composed of potassium lithium aluminum silicate fluoride polylobar Having or involving multiple or many lobes. polylobate Having many lobes polylobated Synonym of polylobate. polylobed Having multiple lobes. polylobular Having or involving multiple or many lobules. polylobulated Having many lobules polylog polylogarithm polylogarithm A function of complex numbers related to logarithms. polylogarithmic Of or pertaining to a polylogarithm.