Looking for words that start with “is”? Here’s a comprehensive list that will add variety and depth to your vocabulary.
- Isosceles- having two sides of equal length.
- Isolate- to set or place apart.
- Isotope- forms of an element with different atomic masses.
- Isobar- a line on a weather map connecting points of equal pressure.
- Isotope- variants of a chemical element with different neutron numbers.
- Island- a piece of land surrounded by water.
- Isothermal- having constant temperature.
- Isochronous- occurring at the same time or at equal time intervals.
- Isomer- compounds with the same formula but different structures.
- Isotonic- having equal solute concentration.
- Isomorphous- having the same form or structure.
- Isometric- having equal dimensions or measurements.
- Isolated- separated from others.
- Isogonic- having equal angles.
- Isobaric- having equal or constant pressure.
- Isotropy- uniformity in all directions.
- Isostatic- pertaining to equilibrium of the Earth’s crust.
- Isostacy- equilibrium between Earth’s lithosphere and asthenosphere.
- Isotropous- exhibiting properties with no directionality.
- Islamist- advocate or supporter of Islamic fundamentalism.
- Isaiah- a major Hebrew prophet.
- Isabel- a given name.
- Isonomy- equality of political rights.
- Issei- first-generation Japanese immigrant to the US.
- Isobaric- having equal pressure.
- Isocline- a line of equal slope.
- Isonomy- equality under the law.
- Isohyet- a line on a map connecting points of equal rainfall.
- Isogloss- a line on a dialect map marking a linguistic feature.
- Isocyanate- a group of reactive compounds.
- Isoform- different forms of a protein.
- Isotropic- having identical properties in all directions.
- Isocitrate- a compound in the citric acid cycle.
- Isobutylene- a hydrocarbon used in the production of synthetic rubber.
- Isoenzyme- different forms of an enzyme.
- Islet- a very small island.
- Isobutane- a gaseous hydrocarbon used as a refrigerant.
- Isostasis- balance in the earth’s crust maintained by flow.
- Isometric- related to equal measure or dimensions.
- Isolationism- policy of remaining apart from affairs of other groups.
- Isoprene- a hydrocarbon used in manufacture of synthetic rubber.
- Isomeric- relating to isomers.
- Isocyanic- relating to a cyanate.
- Isocenter- a central point in radiation treatment.
- Isospectral- having the same spectrum.
- Isocostal- involving equal rib angles.
- Isocontour- a line connecting points of equal value.
- Isoclinic- related to equal inclination.
- Isoviscous- having the same viscosity.
- Isotropic- uniform in all orientations.
- Isodiametric- having equal diameters.
- Isocracy- government where all have equal power.
- Isolable- able to be isolated.
- Isosurface- a three-dimensional surface of constant value.
- Isodose- line on a chart representing equal radiation dose.
- Isogonic- having identical angles.
- Isobaric- same or constant pressure.
- Isomerize- to convert into an isomer.
- Isorhythmic- having the same rhythm.
- Isobathytherm- a line of equal underwater temperature.
- Isopleth- a line on a map connecting points of equal value.
- Isohaline- a line of equal salinity.
- Isocard- a line on a chart of equal cardiac value.
- Isokinetic- movement at a constant speed.
- Isodactylism- having equally-sized digits.
- Isobath- a line on a map connecting points of equal depth.
- Isarithm- a line connecting points of equal value.
- Isosceless- a triangle with two equal sides.
- Isohypsic- connecting points of equal elevation.
- Isoencephal- having a brain of equal mass.
- Isofucose- a type of sugar molecule.
- Isothermy- a state of constant temperature.
- Isodimorphism- having equal forms in different conditions.
- Isocytosis- having equal sized cells.
- Isoagglutinin- an antibody that reacts with antigens.
- Isoabsorption- identical absorption characteristics.
- Isodensity- regions of equal density.
- Isocorrelation- same correlation coefficient.
- Isoperimetric- equal perimeter.
- Isovolume- same volume.
- Isogrid- grid with equal spacing.
- Isoenthalpic- process with constant enthalpy.
- Isochor- line of constant volume.
- Isogen- a characteristic shared by a geographical area.
- Isospin- quantum number related to the strong force.
- Isorotational- having rotational symmetry.
- Isochlor- line of equal chlorine concentration.
- Isotactic- having the same repeating unit.
- Isokeraunic- equal thunderstorm activity line.
- Isopach- a line of equal thickness within strata.
- Isophote- line of equal illumination.
- Isobront- line connecting points of simultaneous thunder.
- Isopia- equality in visual capability.
- Isopod- a type of crustacean.
- Isorhythm- equality in rhythm.
- Isopycnic- having equal density.
- Isocline- line connecting equal incline.
- Isallobar- change in atmospheric pressure.
- Iso- propyl – molecular group derived from propane.
- Isosmotic- having equal osmosis pressure.