ɪn nˈætʃɚɹəl sˈaɪəns, sʌbˈɛɹɪəl lˈɪɾɚɹəli "ˌʌndɚ ðɪ ˈɛɹ"hˈæzbiːn jˈuːzd sˈɪns wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd θˈɜːɾi θɹˈiː, nˈoʊɾəbli ɪn dʒɪˈɑːlədʒi ænd bˈɑːtəni, tə dᵻskɹˈaɪb fˈiːtʃɚz ænd ᵻvˈɛnts əkˈɜːɹɪŋ ɔːɹ fˈɔːɹmd ˌɔn ɔːɹ nˌɪɹ ðɪ ˈɜːθz lˈænd sˈɜːfɪs.
In natural science, subaerial (literally "under the air") has been used since 1833, notably in geology and botany, to describe features and events occurring or formed on or near the Earth's land surface.