Hopkins's use of "seared," "bleared," and "smeared" is an example of

Answer 1

Pronounce those words aloud. What do you hear?

http://www.answers.com/alliteration

http://www.answers.com/assonance

What do you think?

Answer 2

There are a number of "types" of rhyme. These would fit into more than one classification. Check this site:

http://en.wikipedia.org/wiki/Rhyme#Types_of_rhyme