反切

1.【语】a traditional method of indicating the pronunciation of a Chinese character by using two other Chinese characters, the first having the same consonant as the given character and the second having the same vowel (with or without final nasal) and tone

1.【语】e.g. the pronunciation of 同 tóng is indicated as 徒红切,meaning a combination of the consonant t from 徒 tú and the vowel plus nasal óng from 红 hóng