The word "neriin" is a phonetically unique term, requiring IPA transcription to fully explain its spelling. The word is spelled /nɛraɪn/, with the stress on the first syllable. The "n" at the beginning is pronounced as normal, followed by the short "e" sound, then the diphthong "ai" which is pronounced as "a" followed by a quick "i" sound. Lastly, the word ends with the long "i" sound, spelled as "in". Despite its obscure spelling, the IPA transcription helps to clarify its pronunciation.
A glucoside from the leaves and bark of the oleander; employed as a substitute for digitalis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.