Yeeeees. OK then, to spell it out it has one short and one long syllable which one could describe as 1.5 if one were being silly.
And pronounciations vary with accent, particularly when those accents cross oceans.
What do you mean by real vowels? If you mean that two vowels together count as one, then I'd agree it's a good indicator. Which would give "nuclear" two syllables. And "clear" one....... Those in favor of "Squirrel" having one vowel should take note
