Bionomicses, pronounced /baɪəˈnɒmɪksɪz/, is the plural form of bionomics, which refers to the scientific study of the interactions between organisms and their environment. The word is derived from the Greek words bios, meaning "life," and nomos, meaning "law" or "management." The spelling of bionomicses follows the standard English rule for forming plurals, adding -es to words that end in -s or -x. While bionomicses may not be a commonly used word, it is important in the scientific community as it relates to the field of ecology.