Apāna (neuter) breathing out, respiration (so Childers; no reference in Pāli Canon?) On prāṇa and apāna see G.W. Brown in JAOS 39, 1919 past participle 104-112. See ānāpāna.
数字巴利辞典 DPD
(nt, nt)
exhaling; exhalation; breathing out
Construction: apa + √an + a