HELI- Meaning of HELI- in English [heli-] or helio- comb form [L, fr. Gk heli-, helio-, fr. helios--more at solar]: sun "heliocentric" [2]heli- comb form [by shortening]: helicopter "heliport" Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012