/dɪˈtekt ||; dɪˈtɛkt/verb [T] to notice or discover sth that is difficult to see, feel, etc 发现；查出；察觉: I detected a slight change in his attitude. 我察觉到他的态度稍有变化。Traces of blood were detected on his clothes. 在他的衣服上发现一些血迹。 ➔detectable adj ➔detection noun [U]: The crime escaped detection(= was not discovered)for many years. 这罪行多年未被揭发。