Laurence Urdang, a prolific lexicographer who had a hand in more than 100 dictionaries and other reference books, died on Thursday in Branford, Conn. He was 81 and lived in Old Lyme, Conn.

劳伦斯?厄当（Laurence Urdang）一位多产的辞书编纂人——他编纂了字典和其他参考书100多部——于星期二死于布兰福德康恩，享年81岁，居住在美国康涅狄格州的Old Lyme（地名）。