Tetragramme is an alternative form of tetragram.
As nouns the difference between tetragramme and tetragram
is that tetragramme is while tetragram is a group of four letters.
tetragram
English
Alternative forms
* tetragramme (very rare)
Noun
(
en noun)
A group of four letters.
Synonyms
* tetragraph
Coordinate terms
* trigram