外氣圈 (Gōa-khì-khoan) (英語 (Eng-gí): exosphere) 是 (sī)焓 (hâⁿ)佇 (tī)惑星 (he̍k-chheⁿ)也 (iā)自然 (chū-jiân)衛星 (ōe-chheⁿ)外 (gōa)口 (kháu)的 (ê)大氣圈 (tāi-khì-khoan)薄 (po̍h)層 (chân)。伊的 (I-ê)下底 (ē-té)邊界 (pian-kài)號 (hō)做 (chò)外氣抵 (gōa-khì-té) (exobase)
