While reading about diphthongs in a different question today, I noticed that while the word "diphthong" doesn't seem to contain any actual diphthongs, it does contain 3 sets of consonant groupings.
When I was younger, I used to think consonant groupings actually were called diphthongs. I know now that I was mistaken, but I do wonder - is there a single word that describes consonant groupings?
After doing some searching on Google, Wikipedia and this site, I'm unable to find a definitive answer besides "consonant cluster" or "consecutive consonant". Those terms may be the only accurate ones available, but I would be mildly disappointed.