APO- Meaning of APO- in English [apo-] or ap- prefix [ME, fr. MF & L; MF, fr. L, fr. Gk, fr. apo--more at of] 1: away from: off "aphelion" 2: detached: separate "apogamy" 3: formed from: related to "apomorphine" Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012