The word "in nocuousnesses" is a tongue twister for most English speakers. To break down its spelling, it's helpful to use IPA phonetic transcription: /ɪn nɒkjuːəsnɪsɪz/. The first syllable "in" means "not," and the rest of the word is made up of the root "nocuous," which means harmful or injurious, and the suffix "-ness," which transforms the root into a noun. The plural form is created with the addition of the suffix "-es." In summary, "in nocuousnesses" refers to the state of being harmless or non-toxic.