首页英语词典retardationretardation英英释意

retardation

英[,riːtɑː'deɪʃən] 美[,ritɑr'deʃən]
  • n. 阻滞;迟延;妨碍

英英释意


1. a decrease in speed;
"the deceleration of the arms race"
2. the extent to which something is delayed or held back
3. any agent that retards or delays or hinders;
"flame-retardant"
4. lack of normal development of intellectual capacities
5. the act of slowing down or falling behind