assonant
1. [ adjective ] having the same sound (especially vowel sound) occurring in successive stressed syllables
Examples:

"note the assonant words and syllables in `tilting at windmills'"

Related terms: rhyme same
2. [ adjective ] (verse) having the same vowel sound occurring with different consonants in successive words or stressed syllables
Related terms: rhymed
Similar spelling:   assonance
  Asimina