Search the dictionary A Chinese word or character, or English Draw a character Search 3 entries. ādìng 吖啶 acridine (antiseptic and disinfectant) ānādìng 氨吖啶 aminoacridine or aminacrine (antiseptic and disinfectant) ādīngdìng 吖丁啶 azetidine (chemistry) (loanword)