Postaspiration is the puff of air that occurs after the release of a voiceless consonant. If the puff of air occurs before the consonant, it is called preaspiration. In Scottish Gaelic, postaspiration tends to appear after a stop at the onset of a stressed syllable. Both types of aspiration occur in Gaelic. Phonetic aspiration should not be confused with the initial consonant mutation called lenition, although the term is sometimes use to refer to the phenomenon.
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- Ladefoged, D. (2010) A Course in Phonetics. 6th Edition. Wadsworth Publishing.
- Lamb, William (2003) Scottish Gaelic. 2nd edition. Munich: Lingcom Europa