The spelling of the word "hydroponicses" can be quite confusing due to its multiple suffixes. The correct pronunciation, as indicated by IPA phonetic transcription, is /haɪ.drəˈpɒn.ɪks.ɪz/. The root word is "hydroponics" which refers to the cultivation of plants in a nutrient-rich solution instead of soil. The "-s" suffix makes the word plural, while "-es" is added to indicate possession or ownership. Therefore, "hydroponicses" refers to multiple instances of hydroponics or things belonging to hydroponics.