indeterminate vowel

He didn't anticipate profit, but now Schwa - lower-cased, it means an indeterminate vowel sound like uh - is grossing $15,000 a month.

Now the next word ends in the voiced labial plosive "b" separated from a velar consonant, either "l" or "r", by the indeterminate vowel sound usually represented in spelling by the unaccented letter "e".