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 cyamella A small sesamoid bone situated in the popliteus muscle found in primates (rarely humans) and certain other animals. cyamemazine A typical antipsychotic of the phenothiazine class. cyamid A crustacean of the family Cyamidae; a whale louse. cyamiid Any bivalve in the family Cyamiidae. cyamodontid Any extinct placodont in the family Cyamodontidae. cyan An additive secondary colour midway between green and blue, evoked by wavelengths between ~490 and ~520 nm. cyanamide A chemical compound, NH₂CN; a white crystalline solid, soluble in water, having many commercial applications including fertilizer cyanase An enzyme that catalyses the conversion of cyanate to carbamate cyanate Any salt or ester of cyanic acid. cyanated Modified by the addition of one or more cyanide groups cyanation Reaction with, or formation of a cyanide cyanato The univalent radical NCO- derived from cyanate cyanaurate An aurocyanide. cyanazine The heterocyclic nitrile 2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropanenitrile which is a teratogenic pesticide Cyane A naiad who tried to prevent Hades from abducting Persephone, her playmate. cyanean Having an azure colour. cyaneid Any jellyfish in the family Cyaneidae. cyanelle A kind of chloroplast found in glaucophytes. cyaneous Of a deep or dark blue color. cyanescence The condition of being cyanescent. cyanescent That becomes dark blue or green, typically or the retina when treated with an indocyanine dye cyanic Of cyanogen or its derivatives cyanidation The extraction of gold or silver from their ores using the cyanide process cyanide Any compound containing the -C≡N group or the CN⁻ anion. cyanidelike Resembling or characteristic of cyanide. cyanidin An anthocyanidin pigment, 2-(3,4-dihydroxyphenyl) chromenylium-3,5,7-triol, found in many red berries. cyaniding A poisoning carried out with cyanide. cyanidiophyte Any thermophilic red alga of class Cyanidiophyceae. cyanido The cyano(CN) ion, ligand or radical. cyanidol Synonym of catechol. cyanimide Any cyano-substituted imide of general formula R₁R₂N-C≡N cyanine Any of a family of synthetic polymethine blue dyes used in photography etc. cyanish Somewhat cyan in colour. cyanize To convert into cyanide. cyanmethemoglobin A relatively non-toxic cyanide derivative of methemoglobin formed when amyl nitrite and sodium nitrite are used as antidotes to cyanide poisoning cyano a univalent functional group, -CN, consisting of a carbon and a nitrogen atom joined with a triple bond; organic compounds containing a cyano group are nitriles cyanoacetaldehyde Any cyano derivative of acetaldehyde cyanoacetamide The amide of cyanoacetic acid cyanoacetate Any salt or ester of cyanoacetic acid cyanoacetic Of or pertaining to cyanoacetic acid or its derivatives. cyanoacetyl The univalent radical NC-CH₂-CO- derived from cyanoacetic acid cyanoacetylene The linear acetylenic nitrile HC≡C-CN or any derivative of this compound cyanoacrylamide The amide of cyanoacrylic acid cyanoacrylate Any of a class of esters of cyanoacrylic acid that are used as instant adhesives. cyanoacrylic Relating to cyanoacrylic acid or its derivatives cyanoalkyl Any cyano derivative of a alkyl radical cyanoamino a functional group containing nitrile connected to amine (C≡N-NH-) cyanobacterial Of or pertaining to the cyanobacteria. cyanobacterially By way of cyanobacteria. cyanobactericidal That kills cyanobacteria cyanobacteriochrome Any of a family of photoreceptor proteins, related to phytochrome, found in the cyanobacteria cyanobacteriologist A bacteriologist whose speciality is cyanobacteria cyanobacteriology bacteriology of the cyanobacteria cyanobacteriolytic bacteriolytic to cyanobacteria cyanobacteriophage A bacteriophage associated with cyanobacteria cyanobacteriosponge A marine sponge that supports a community of cyanobacteria cyanobacterium Any of very many photosynthetic prokaryotic microorganisms, of phylum Cyanobacteria. cyanobactin Any of a family of small, cyclic peptides produced by cyanobacteria, many of which show antimalarial or antitumor activity. cyanobenzaldehyde Any cyano derivative of benzaldehyde cyanobenzoate Any cyano derivative of a benzoate group cyanobenzyl Any cyano derivative of a benzyl radical cyanobiont A cyanobacterium that lives in symbiosis a eukaryote; a cyanobacterial photobiont. cyanobiphenyl Any of three isomeric cyano- derivatives of biphenyl, but especially 4-cyanobiphenyl which is an element of several mesogenic materials cyanoborodeuteride Any cyanoborohydride in which one or more hydrogen atoms have been replaced with deuterium cyanoborohydride The anion BH₃-C≡N⁻; any salt containing this anion cyanocarbon a class of organic compounds formally derived from hydrocarbons by replacing every hydrogen atom with a cyanide radical; e.g. - tetracyanomethane - C(CN)₄ cyanocarboxylate Any cyano derivative of a carboxylate cyanochroite A monoclinic-prismatic green blue mineral containing copper, hydrogen, oxygen, potassium, and sulfur. cyanochromone Any cyano derivative of a chromone. cyanocobalamin A synthetic form of vitamin B₁₂ (cobalamin). cyanocuprate Either of two anions that are cyanide derivatives of cuprate Cu(CN)₂⁻ and Cu(CN)₄³⁻; any salt containing such an anion cyanocycline Any of a class of antibiotics, produced by Streptomyces bacteria, composed of a tetrahydroisoquinoline residue fused to a diazabicyclic core, that has antitumour activity cyanodiacetylene The linear acetylenic nitrile HC≡C-C≡C-CN or any derivative of this compound cyanoethoxy Any cyano derivative of an ethoxy radical cyanoethyl The univalent radical NC-CH₂-CH₂- most often obtained by protonation of acrylonitrile cyanoethylate To subject to cyanoethylation. cyanoethylation Any reaction, or treatment, with acrylonitrile, especially such treatment of cotton fabric to improve its strength and make it easier to dye cyanoethyldichlorosilane The organosilane CH₃CH₂SiCl₂CN cyanoferrate Synonym of ferricyanide. cyanoform The compound CH(CN)₃ analogous to the haloforms cyanoformate The anion N≡C-COO⁻ derived from cyanoformic acid; and salt or ester of this acid cyanogen The pseudohalogen (CN)₂; a colorless, poisonous gas used as a rocket propellant, an insecticide and in chemical warfare. cyanogenesis The generation of cyanide, especially from a biological source cyanogenetic Giving rise to cyanide cyanoglobin A hemoprotein, similar to myoglobin, found in certain cyanobacteria cyanoglucoside A glucoside in which the aglycone is a cyanide group cyanoglycoside A glycoside in which the aglycone is a cyanide group cyanograph A cyanotype print. cyanographic Pertaining to cyanography and cyanographs. cyanography The art of creating prints using cyanotype (cyanographs). cyanoguanide Any univalent radical or anion derived from cyanoguanidine cyanoguanidine The cyano derivative of guanidine NH₂-C(=NH)-NH-CN cyanohemoglobin A form of hemoglobin bound with a cyanide ion that can no longer bind with oxygen cyanohydrazone A hydrazone formally derived from a cyanohydrin cyanohydrin Any compound having both a hydroxy and a cyanide functional group, especially one having these groups attached to the same carbon atom cyanoimine Any cyano derivative of an imine, R₂C=N-C≡N, especially one used as an organic semiconductor cyanoketone A particular androstenol that inhibits steroidogenesis. cyanol Any of several blue dyes. cyanolichen A form of lichen in which the alga is a species of blue-green alga cyanolipid Any of several classes of lipid that contain a nitrile (cyanide) group cyanolysis Any lytic reaction with cyanide ions cyanometallate Any metallate containing cyanide as ligand cyanometer An instrument for measuring the intensity of blue colour by comparing it against a set of reference shades. cyanomethane methyl cyanide cyanomethyl The cyano derivative of a methyl radical cyanomethylation Any reaction that introduces a cyanomethyl group cyanometric Relating to cyanometry. cyanometry The use of the cyanometer to measure the intensity of blue colour. cyanomorph The form of a specific lichen that has a cyanobacterium as its photobiont cyanomyovirus Any virus of the genus Cyanomyovirus. cyanonickelate A chemical compound containing an anion composed of nickel and cyanide ligands. cyanopathic Relating to cyanopathy. cyanopathy cyanosis cyanope A person with fair hair and brown eyes. cyanopeptide Any of a group of peptides produced by cyanobacteria cyanopeptolin Any of a class of oligopeptides (or cyclic depsipeptides), some neurotoxic, produced by Microcystis and Planktothrix algae strains. cyanophage A virus that infects cyanobacteria. cyanophenyl Any cyano derivative of a phenyl radical. cyanophil A cell that is differentially coloured blue by a cytological dye cyanophilia The affinity of cells or tissue components for blue dyes. cyanophilic Relating to cyanophils cyanophilous Having cell walls that readily absorb cotton blue stain. cyanophily Synonym of cyanophilia. cyanophobia Fear of, or aversion to, the colour blue. cyanophore A chromatophore that appears blue under white light. cyanophosphonate The anion or group formed by replacing one of the hydroxyl groups of a phosphonate by a cyanide group cyanophosphorylation Any addition reaction in which a cyano (nitrile) group and a phosphoryl group are added across a double bond or triple bond cyanophycean Of or pertaining to the Cyanophyceae class of blue-green algae (now called Cyanobacteria); cyanobacterial. cyanophycin A polypeptide used as a nitrogen store by cyanobacteria. cyanophycinase An enzyme that catalyzes the reaction [L-Asp(4-L-Arg)]ₙ + H₂O ⇌ [L-Asp(4-L-Arg)]ₙ₋₁ + L-Asp(4-L-Arg). cyanophyll A blue pigment thought to have been one of the component parts of chlorophyll. cyanophyllite An orthorhombic-dipyramidal greenish blue mineral containing aluminum, antimony, copper, hydrogen, and oxygen. A polytype of cualstibite, and discredited for such in 2012. cyanophyte A member of the class Cyanophyceae. cyanopic Describing the part of vision that detects blue/green light. cyanopically In a cyanopic manner cyanopindolol A drug related to pindolol which acts as both a β1 adrenoreceptor antagonist and a 5-HT1A receptor antagonist. cyanoplast Synonym of cyanelle. cyanopodovirus Any cyanobacterial podovirus. cyanopolyyne Any of a class of long-chain acetylenic nitriles, some of which have been observed in interstellar space. cyanoprokaryote Synonym of cyanobacterium. cyanopropyl Any of three isomeric univalent radicals in which a hydrogen atom of a propyl radical is replaced by cyanide e.g. N≡C-CH₂-CH₂-CH₂- cyanopsia A disorder of the vision causing all objects to appear blue, often the temporary consequence of removal of a cataract. cyanopyrethroid A cyano derivative of a pyrethroid, typically used as insecticides cyanopyridine Any of three isomeric nitriles that are cyano derivatives of pyridine cyanoquinoline Any cyano derivative of quinoline cyanose To turn blue due to cyanosis. cyanosed Afflicted with cyanosis. cyanosilylation Any addition reaction in which a cyano (nitrile) group and a silyl group are added across a double bond or triple bond cyanosiphovirus Any freshwater cyanobacterium of the genus Cyanosiphovirus cyanosis A blue discolouration of the skin due to the circulation of blood low in oxygen.