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 isonicotine A crystalline nitrogenous base (alkali), C₁₀H₁₄N₂, isomeric with nicotine. isonicotinic Of or pertaining to isonicotine isonicotinohydrazide Synonym of isoniazid. isonicotinoyl The radical derived from isonicotinic acid isonipecaine The opioid analgesic drug pethidine. isonitrile isocyanide isonitrogenous Having the same amount of dietary nitrogen isonitrosoacetanilide An oxime of acetanilide. isonixin A nonsteroidal anti-inflammatory drug. isonodososide A particular steroid glycoside. Isonoe One of the moons of Jupiter. isonomia Equality before the law; possession of equal rights; equal distribution of rights and privileges. isonomic The same, or equal, in law or right; one in kind or origin; analogous or similar. isonomous isonomic isononane Any nonane other than CH₃(CH₂)₇CH₃. isononanoate Any salt or ester of an isononanoic acid isononyl Any of several branched-chain isomers of the nonyl radical, but especially 3,5,5-trimethyl pentyl isonuclear Having the same nucleus isonutritive Having the same nutritive value isonym A paronym. isonymic Having the same name, especially the same family name. isonymous isonymic isonymy The property of having the same name, especially the same family name. isoobtusilactone The butanolide (3E,4S)-3-dodec-11-enylidene-4-hydroxy-5-methylideneoxolan-2-one or any similar isomer of obtusilactone isooctane any isomer of n-octane; especially 2,2,4-trimethylpentane, used as a reference in the determination of the octane number of fuel isooctanol 2-ethylhexanol, a fatty alcohol used in the manufacture of a variety of products. isooctyl Any of several octyl isomers that have a sidechain, but especially 6-methyl-heptyl isooctylmercaptoacetate The isooctyl ester of mercaptoacetic acid isooleic Being or relating to an isomer of oleic acid. isooptoacoustic Describing a point in the thermal spectrum of a system undergoing chemical reaction that does not change in intensity during the course of the reaction. isoorientin An isomer of orientin isoosmolal Having the same osmolality isoosmolar Having the same osmolarity isoosmolarity The condition of being isoosmolar isooxazoline Synonym of isoxazoline. isopach A line on a chart joining parts of a stratigraphic unit that have the same thickness; an isopachous line. isopachic A line joining points that have the same stress isopachous Relating to isopachs isopachyte isopach isopalmitate Any salt or ester of isopalmitic acid isopanose A trisaccharide that is an isomer of panose. isoparaffin Any branched-chain isomer of a straight-chain alkane isoparaffinic Relating to, or containing an isoparaffin isoparametric Having the same parameters (under different coordinate systems) isoparm An isoparametric curve. isopatchoulenone A tricyclic ketone found in Cyperus rotundus. IUPAC name (1R,7S,10R)-4,10,11,11-tetramethyltricyclo[5.3.1.0^(1,5)]undec-4-en-3-one isopathy The system that treats a disease by means of the virus of the same disease. isopectic Synonym of equiglacial line. isopedine A layer of mineralized collagen in some fish scales isopenicillin A cyclic isomer of penicillin. isopentadiene Any isomer of pentadiene, but especially isoprene isopentane An aliphatic hydrocarbon with the chemical structure CH₂CH₂CH(CH₃)₂; isomeric with pentane and neopentane. isopentanoate Synonym of isovalerate. isopentanol Any isomer of n-pentanol, but especially amyl alcohol isopentene Any isomer of n-pentene (cis- or trans-2-pentene, methyl-butene &c) isopentenol An alcohol derived from isopentene isopentenyl A univalent radical, CH₂=C(CH₃)-CH₂-CH₂-, derived from isopentene isopentenyladenine A particular cytokinin. isopentenyladenosine A particular cytokinin. isopentenylation Reaction with an isopentenyl radical isopentenyltransferase Any transferase that catalyses the transfer of an isopentenyl group isopentyl isoamyl isopentylamine The aliphatic primary amine 3-methylbutylamine (CH₃)₂CH-CH₂-CH₂-NH₂ isopepsin Pepsin modified by exposure to a temperature of 40 to 60°C. There is no evidence that this substance had any relevant characteristics. isopeptidase Any enzyme that catalyzes the cleavage of an isopeptide bond, especially that between the terminal diglycine attached to ubiquitin isopeptide A compound of two or more amino acids (a peptide) in which an amide link involves an amino group not in the alpha- position isopeptidic Relating to or composed of isopeptides. isoperformance The performance of a machine or system that is invariant under a range of inputs isoperibolic approximately isothermal isoperimeter A figure that has the same perimeter as another isoperimetric Having the same perimeter; applied to the problem of finding a plane figure of the largest possible area whose boundary has a specified length isoperimetrical isoperimetric isoperimetrically Having the same perimeter. isoperimetry The study of isoperimetric structures. isoperiodic Having the same period. isoperistaltic Exhibiting peristalsis in the same direction isopetalous Having petals of the same shape and size. isophagy Autolysis. isophane Being of a certain ratio of protamine to insulin. isophene A line (on a map, etc.) joining places where a particular biological phenomenon is exhibited in the same way, such as where plants flower at the same time (an isanthesic) or where the same proportion of clines is found. isophenogamy mating between people who have the same phenotype (who bear a somatic resemblance to each other) isophenomenal Serving to indicate areas having equal amounts of any atmospheric phenomenon. isophenotypic Having the same phenotype isophlorin A π-ekectron N,N'-dihydroporphyrin; a nonaromatic complex derived from porphyrin with properties similar to a porphyrinoid. isophone An isogloss indicating where a certain phone, or speech segment, is found. isophonic Involving or indicating the same sound; identical in sound. isophorone An α,β-unsaturated cyclic ketone, a colourless to yellowish liquid with a characteristic smell, used as a solvent and as an intermediate in organic synthesis. isophorous Able to transform into something else. isophosphamide Synonym of ifosfamide. isophosphindole A heterocycle formally derived from isoindole by replacing the nitrogen atom with phosphorus isophosphinoline A heterocycle formally derived from isoquinoline by replacing the nitrogen atom with phosphorus isophot A line of equal luminance on a map. isophotal Of or pertaining to isophots or isophotes. isophote A contour of equal luminance in an image. isophotic isophotal isophotometric Relating to isophotometry. isophotometry The study, measurement or construction of isophotes isophthalamide The amide of isophthalic acid isophthalate Any salt or ester of isophthalic acid isophthalic Of or pertaining to isophthalic acid and its derivatives. isophyllous Having leaves of equal size and shape throughout. isophylly The quality of being isophyllous. isophytol The isomer of phytol 3,7,11,15-tetramethylhexadec-1-en-3-ol isopiestic Having equal pressure; isobaric. isopiline The alkaloid (6aR)-2,3-dimethoxy-5,6,6a,7-tetrahydro-4H-dibenzo[de,g]quinolin-1-ol isopimarane A tricyclic diterpene with IUPAC name (2S,4aS,4bR,8aS,10aS)-2-ethyl-2,4b,8,8-tetramethyl-3,4,4a,5,6,7,8a,9,10,10a-decahydro-1H-phenanthrene. isopimpenellin A particular furanochromone. isopimpinellin A furocoumarin found in celery, parsnips, and various other plants. isopinocampheylamine The bicyclic monoterpenoid alcohol (1R,2R,3R,5S)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-ol isopiptesis An isoline that joins points on a map where the individuals of a particular migratory species arrive at the same time each year. isoplanatic Having the same planarity isoplastic Relating to isoplasty isoplasty isotransplantation isopleth A line drawn on a map through all points having the same value of some measurable quantity. isoplethic Relating to isopleths. isopleuron equilateral isopluvial A contour line of points of equal depth of rainfall during a particular storm or event. isopod Any of very many crustaceans, of the order Isopoda, that have a flattened body and no carapace. isopodan Of or relating to the isopods. isopodologist One who studies isopods. isopodous isopodan (belonging or relating to the isopods). isopoint The most recent point in a given population's past such that each individual alive at that point either has no living descendants, or is the ancestor of every individual alive in the present. isopointal Describing crystals belonging to the same point group isopolar Having the same poles or apices isopolitical Relating to isopolity. isopolity Equal rights of citizenship in different communities; mutual political rights. isopoll A line on a map showing places having the same amounts of a particular pollen. isopolyanion Any anion derived from an isopoly acid. isopor A line on a map that joins places of equal annual change in a geomagnetic property; an isoporic line. isopore Having pores of all the same size isoporic Concerning isopors, lines of equal annual change in a geomagnetic property. isoporphyrin Any of several isomeric forms of porphyrin; vis:- porphycene, corrphycene, hemiporphycene, isoporphycene and N-confused porphyrin isopotential equipotential isopotentiality Synonym of equipotentiality. isopract An isoline. isoprazone A nonsteroidal anti-inflammatory drug. isopreference Having a constant subjective quality isopregnanolone The epimer of allopregnanolone 3β-hydroxy-5α-pregnan-20-one isoprenaline A sympathomimetic beta-adrenergic agonist medication, structurally similar to epinephrine and mainly used for the relief of bronchial asthma and pulmonary emphysema. isoprene An unsaturated hydrocarbon, C₅H₈, that is readily polymerized; natural rubber (caoutchouc) is cis-1,4-polyisoprene, and trans-1,4-polyisoprene is present in gutta-percha and balata; it is the structural basis for the terpenes. isoprenic Relating to isoprene or to the many isoprenoids isoprenogenesis The biosynthesis of isoprenoids isoprenoid Any compound formally derived from one or more isoprene units. isoprenoidal Relating to an isoprenoid isoprenol Any isoprenoid alcohol, but especially 3-methylbut-3-en-1-ol. isoprenolog Any homologue of an isoprenoid isoprenyl The univalent radical -CH₂CH=C(CH₃)₂ (C₅H₉) derived from isoprene (C₅H₈).https://journals.sagepub.com/doi/pdf/10.1177/1934578X0900400115 Also called prenyl. isoprenylate To modify by isoprenylation. isoprenylated Modified by isoprenylation isoprenylation The addition of a hydrophobic isoprenoid group to a protein to facilitate attachment to cell membranes.