from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any of a class of long-chain aliphatic amino alcohols
from The Century Dictionary and Cyclopedia
- Like a sphinx: or hawkmoth; sphingine or sphingiform.
Sorry, no etymologies found.
In normal tissues free sphingoid bases (essentially sphingosine and sphinganine) are only present in minute amounts, similar to GM2 and GM3 gangliosides in the brain.
Analysis of free sphingoid bases was carried out by high-performance liquid chromatography as described by Rodriguez-Lafrasse et al.  using eicosasphinganin as an internal standard.