/ˌpri:dɪˈtɜ:mɪn ||; ˌpridɪˈtɝmɪn/verb [T] (formal 正式) to decide sth in advance so that it does not happen by chance 预先决定；事先安排: The sex of the embryo is predetermined at fertilization. 胚胎的性别早在受精时就决定了。The way in which surveys are run often predetermines the results that are obtained. 民意调查进行的方式常常预先决定了调查的结果。➔predetermined adj