Answer:
Segmental phonology studies the way speech can be analyzed into discrete units, or segments, that constitute the basis of the sound system; and this, along with the analysis of the various phonetic features and processes which relate and differentiate these segments, is the subject-matter of this chapter.
Explanation:
His made me wonder if "segment" is some kind of synonym for either "phone" or "phoneme", just some way to avoid using those terms, or some other concept all together.
