高反 gāofǎn altitude sickness Origin Definitions Defs Strokes Stroke Words Sentences Sents 高 gāo noun abbreviation of 高原 gāoyuán plateau plateau; highland; tableland反 fǎn nounverb abbreviation of 反应 反應 fǎnyìng to react to respond to a stimulus biologically or medically or to react to a situation; response; reaction