syneresis
/sɪˈnɪərəsɪs/noun
(pl. synereses /-siːz/) ［mass noun］
1
- the contraction of two vowels into a diphthong or single vowel元音省略。
2
- Chemistry the contraction of a gel accompanied by the separating out of liquid【化】脱水收缩, （胶体）凝缩（作用）。
词源
late 16th cent.: via late Latin from Greek sunairesis, based on sun- 'together' + hairein 'take'.