Stray

离群[单位]

A term used in various models of non-linear phonology, describing a unit (e.g. a syllable, a segment) which falls outside the conventions of a representation and which therefore needs to be handled in a special way. For example, in metrical phonology a stray syllable produced by destressing needs to be adjoined to another node in the word tree (stray syllable adjuntion). Stray eraser is a procedure which deletes segments which cannot be incorporated into a well-formed syllable. It is particularly used in relation to consonants, where it accounts for certain types of syllable shortening and consonant deletion.

各种非线性音系学模型用来描写一个单位（如音节、音段）不在表征规约内因此需要作特殊处理。例如节律音系学中由于重音消除而产生的离群音节需附接到词树的另一个节点（离群音节附接）。离群音段抹除则是将不能纳入合式音节的音段删除；这项操作特别适用于辅音，并能解释音节缩短和辅音删除的一些类型。