irraditionirregular satten weaveirregularityirresolvableirreversibleirreversible processisoisochromaticisochromicisocyanate resinisocyclic ringisodisperesisoelectricisoelectric pointisoelectric point precipitationisoelectric regionisoionicisolanisolated motifisomerisomerisationisotacticisothermisothermalisotonicisotonic solutionisotropicisotropyisovylistleisulation resistanceiterationiterative methodivoreaivory coloured
