As nouns the difference between hellebrin and helleborin
is that hellebrin is a particular steroid glycoside while helleborin is (chemistry) a poisonous glucoside found in several species of hellebore.
hellebrin
English
Noun
(-)
A particular steroid glycoside.
helleborin
English
Noun
(
-)
(chemistry) A poisonous glucoside found in several species of hellebore.
(
Webster 1913)