Wordia - The Definition Of Alliteration
alliteration
noun, the use of the same consonant (consonantal alliteration) or of a vowel, not necessarily the same vowel (vocalic alliteration), at the beginning of each word or each stressed syllable in a line of verse, as in around the rock the ragged rascal ran
From Collins
©HarperCollins 2008. Collins English Dictionary definition of alliteration