n. 头韵

[医] 同音韵错误症

[ noun ]
use of the same consonant at the beginning of each stressed syllable in a line of verse
<noun.communication>
around the rock the ragged rascal ran

Alliteration \Al*lit`er*a"tion\, n. [L. ad + litera letter. See
{Letter}.]
The repetition of the same letter at the beginning of two or
more words immediately succeeding each other, or at short
intervals; as in the following lines:

Behemoth, biggest born of earth, upheaved
His vastness. --Milton.

Fly o'er waste fens and windy fields. --Tennyson.

Note: The recurrence of the same letter in accented parts of
words is also called alliteration. Anglo-Saxon poetry
is characterized by alliterative meter of this sort.
Later poets also employed it.

In a somer seson whan soft was the sonne,
I shope me in shroudes as I a shepe were. --P.
Plowman.