sphingine adjective 1noun 1forms 3 adjective1 •(rare) Sphinx-like.The word I was looking for, I suppose, was "sphingine" – I thought of the baleful prehistoric smile of the Mycenaean women. — 1974 noun1 •The amino alcohol 2-amino-octadecanol CH₃(CH₂)₁₅-CH(NH₂)-CH₂OH related to sphingosine; any related amino alcohol formssphingines · more sphingine · most sphingine