A panvowel might be a word that uses every vowel at least once, such as enunciation, - but let's be stricter, and require that a panvowel use each vowel exactly once. There are lots of these:
ambidextrous cauliflower enunciator exhaustion mustachioed omnisexual postneuralgic sulphogermanic tambourine troublemaking ulceration unisolated undisprovable unproblematic
The shortest (though obscure) such word is apparently eunoia, which comes scarcely altered from the Greek, and means "beautiful thinking" or "well mind" (perhaps). Christian Bok wrote a book with this title, containing 5 chapters, each of which used words containing only one of the five vowels. This is harder than a lipogram, a text which omits one letter (not necessarily a vowel).
A panvowely is a word that uses every vowel just once, including the ambiguous Y (but don't get me started about W!):
ambidextrously dermatoglyphics hydropneumatic omnisexually pseudomythical semivoluntary undiscoverably
A regular panvowel is a word that uses every vowel just once and in order:
A regular panvowely is a panvowel that uses every vowel and Y just once and in order:
You can go to the wordplay home page.