from The Century Dictionary.
- Like a sphinx: or hawkmoth; sphingine or sphingiform.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry any of a class of long-chain
aliphatic amino alcohols
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.