Length is contrastive, but only on an initial CV syllable of a polysyllabic word.
From the en.wikipedia.org
In a polysyllabic word, the tone of the first syllable determines the tone of the entire word.
From the en.wikipedia.org
Almost every polysyllabic Italian word ends in a vowel.
From the en.wikipedia.org
As the position of the stress in a polysyllabic word is not indicated in the spelling this may lead to some confusion.
From the en.wikipedia.org
There is no set rule for which other syllables might receive stress in a polysyllabic word, or which monosyllabic words are stressed in a clause.
From the en.wikipedia.org
Two years ago, Timmons had never heard of Alan Greenspan, but after just a few months of investing, he was hanging on to the Federal Reserve chief's every polysyllabic word.
From the businessweek.com
Stress usually falls on the penultimate syllable in polysyllabic words, while the word-final unstressed syllable receives a higher pitch than the stressed syllable.
From the en.wikipedia.org
The word choice represents a shift from Keats's early reliance on Latinate polysyllabic words to shorter, Germanic words.