Here are some words that use four vowels:
audacious
contagious
republican
publication
acquire
conscientious
tablespoonful
ignorance
immediate
dictionaries
orientation
somersault
question
categories
congratulate
congratulations
accountance
Words without vowels are unpronounceable.
EDUCATION
not in the English language. But if you use chatspeak:l8rw8rw8rcb
A combining form makes use of a word root, and vowels.
username use online
No. A typical example is the word queue.
1.Education 2.Pasteurization and so on......
A few words which do not include any vowels would be things such as xylyl. There are a full list which you can find and browse through on the Scrabble Finder website.
An substitutes for a before certain vowels and before some words that begin with an h. The n separates the vowel sounds. Y-glide vowels sounds don't use an. A female sheep is called A ewe. He wears A uniform and carries AN umbrella. He heard A yapping dog.
word like Education.....
A dog is an animal."A" goes before words that start with consonants and "an" goes before words that start with vowels.
The only related term I have been able to find is: consonantal - of, pertaining or including consonsants. (This definition does NOT however specifically exclude the use of vowels). To do so, I'd suggest adding "-only", i.e., consonantal-only words. For me, it's simpler to say "consonant-only words". BTW, The antonym for consonatal is vocalic (of/pertaining to vowels).