| ISO | ISO |
| Isop | hyssop |
| iso- | iso- |
| Isobar | isobar |
| isobar | isobaric |
| Isoton | isotone |
| isodom | isodomic |
| isotop | isotopic |
| Isotop | isotope |
| Isolde | Eseld Iseult Isold Isolda Isolde Isolt |
| Isomer | isomer |
| Isopren | isoprene |
| Isobare | isobar |
| Miso | miso |
| isochor | isochoric isochore isochorically |
| isotrop | isotropic |
| Eisop | hyssop |
| Isobutan | isobutane |
| Isobuten | isobutene |
| Isohypse | contour |