defined is define's Past Tense

define

US [dɪˈfaɪn]
UK [dɪ'faɪn]
  • v.规定;(弄)明确;为…下定义
  • Web定义级;定义的;已定义级
Simple Present:defines  Present Participle:defining  Past Tense:defined  
v.
1.
(弄)明确
2.
为...立界限,限定,规定
3.
为...下定义,定界说