Definition of nonionic
: not ionic; especially : not dependent on a surface-active anion for effect <nonionic surfactants>
First Known Use of nonionic
Rhymes with nonionic
catatonic, cosmogonic, diachronic, diatonic, disharmonic, electronic, embryonic, epigonic, hegemonic, histrionic, homophonic, Housatonic, hypersonic, infrasonic, inharmonic, isotonic, macaronic, megaphonic, microphonic, monophonic, monotonic, nucleonic, pentatonic, pharaonic, philharmonic, plate-tectonic, polyphonic, quadraphonic, semitonic, skeletonic, Solomonic, supersonic, supertonic, telephonic, thermionic, ultrasonic
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