Real Words Without Definition
This one is a judgement call.
A scientific or medical word built out of Greek and Latin roots. This is the biggest group in the list, about a third of everything.
Medicine gives us anconitis, inflammation of the elbow, and adenalgy, pain in a gland. Chemistry gives us acetylsalicylic. Anatomy, botany and zoology all do the same thing.
Once you know the roots they are completely predictable, which is why no dictionary lists them all. You can keep making new ones forever.
18,355 words · sorted A to Z · each with a line on why it is here
Matches the word itself, not the note beside it. Case does not matter.
| Word, sorted Z to A | Field and meaning |
|---|---|
| isanomalous | meteorology, of equal anomaly |
| isanthous | botany, having regular flowers |
| isarioid | mycology, resembling the fungus Isaria |
| isatic | chemistry, of isatin (isatic acid) |
| isatid | chemistry, isatide, reduction product of isatin |
| isatogenic | chemistry, isatogenic acid |
| isauxesis | biology, growth at the body's own rate |
| isauxetic | biology, adj. of isauxesis |
| isazoxy | chemistry, iso-azoxy group |
| ischiobulbar | anatomy, of ischium and bulb of urethra |
| ischiocaudal | anatomy, of ischium and tail |
| ischioneuralgia | medical, sciatica |
| ischiopubis | anatomy, fused ischium and pubis |
| ischiorrhogic | prosody, broken-hipped iambic verse |
| ischocholia | medical, suppression of the bile |
| isepiptesial | ornithology, of equal bird-arrival date lines |
| iserine | mineralogy, titaniferous iron from the Iser |
| iserite | mineralogy, same as iserine |
| isethionic | chemistry, isethionic acid |
| isidiophorous | lichenology, bearing isidia |
| isidoid | resembling an isidium or the coral Isis |
| isidoric | of isidia or the coral genus Isis |
| isoagglutination | immunology, agglutination within a species |
| isoagglutinogen | immunology, antigen causing isoagglutination |
| isoallyl | chemistry, isomeric allyl radical |
| isoamarine | chemistry, isomer of amarine |
| isoamid | chemistry, isoamide |
| isoamide | chemistry, isomeric amide |
| isoamylamine | chemistry, amine from isoamyl |
| isoamylethyl | chemistry, isoamyl-ethyl radical |
| isoamylidene | chemistry, isoamylidene radical |
| isoantigenicity | immunology, antigenicity within a species |
| isoaurore | geophysics, line of equal auroral frequency |
| isobarbituric | chemistry, isobarbituric acid |
| isobarism | physics, condition of equal pressure |
| isobathythermal | oceanography, of equal temperature at depth |
| isobathythermic | oceanography, same as isobathythermal |
| isobilianic | chemistry, isobilianic acid from bile |
| isobiogenetic | biology, of like biogenesis |
| isobornyl | chemistry, isobornyl radical |
| isobronton | meteorology, line of simultaneous thunderstorm |
| isobutyryl | chemistry, isobutyryl radical |
| isocamphor | chemistry, isomer of camphor |
| isocamphoric | chemistry, isocamphoric acid |
| isocarbostyril | chemistry, isomer of carbostyril |
| isocarpic | botany, carpels equal in number to other parts |
| isocarpous | botany, same as isocarpic |
| isocephalous | art, with heads on one level |
| isocephaly | art, alignment of heads at one level |
| isocercal | ichthyology, of a symmetrical tail-fin |
| isocercy | ichthyology, the isocercal condition |
| isocheimic | meteorology, of equal winter temperature |
| isochela | zoology, sponge spicule with equal ends |
| isochime | meteorology, line of equal winter temperature |
| isochlorophyll | chemistry, isomer of chlorophyll |
| isochlorophyllin | chemistry, derivative of isochlorophyll |
| isocholanic | chemistry, isocholanic acid |
| isocinchomeronic | chemistry, isocinchomeronic acid |
| isocinchonine | chemistry, isomer of cinchonine |
| isoclimatic | climatology, of equal climatic conditions |
| isoclinically | geology, in an isoclinal manner |
| isocodeine | chemistry, isomer of codeine |
| isocorybulbin | chemistry, alkaloid of Corydalis |
| isocorybulbine | chemistry, alkaloid of Corydalis |
| isocreosol | chemistry, isomer of creosol |
| isocrotonic | chemistry, isocrotonic acid |
| isocyanid | chemistry, isocyanide |
| isocyanin | chemistry, a cyanine dye |
| isocyanine | chemistry, a cyanine dye |
| isocyano | chemistry, the isocyano group |
| isocyanogen | chemistry, isomer of cyanogen |
| isocymene | chemistry, isomer of cymene |
| isocytic | biology, of cells of equal size |
| isodactylism | anatomy, having digits of equal length |
| isodactylous | anatomy, with digits of equal length |
| isodialuric | chemistry, isodialuric acid |
| isodiaphere | physics, nuclides of equal neutron excess |
| isodiazo | chemistry, isodiazo compounds |
| isodiazotate | chemistry, salt of isodiazotic acid |
| isodontous | zoology, having teeth all alike |
| isodurene | chemistry, isomer of durene |
| isodynamia | physiology, equality of force |
| isoelectronically | chemistry, in an isoelectronic manner |
| isoemodin | chemistry, isomer of emodin |
| isoerucic | chemistry, isoerucic (brassidic) acid |
| isogametism | biology, condition of having like gametes |
| isogenotype | biology, an identical genotype |
| isogoniostat | optics, instrument holding equal angles |
| isogony | biology, growth at constant relative rate |
| isogradient | meteorology, line of equal gradient |
| isographically | in an isographic (facsimile) manner |
| isogynous | botany, with pistils equal in number |
| isohemolysis | medical, hemolysis by same-species serum |
| isohemopyrrole | chemistry, isomer of hemopyrrole |
| isoheptane | chemistry, a branched heptane |
| isohesperidin | chemistry, isomer of hesperidin |
| isohexyl | chemistry, isohexyl radical |
| isohydrocyanic | chemistry, isohydrocyanic acid |
| isohydrosorbic | chemistry, isohydrosorbic acid |
| isoindigotin | chemistry, isomer of indigotin |
The other lists filed alongside this one.
