adj.正常以下的；普通以下的；低能的
Subnormal b-wave were seen in electroretinography. 網(wǎng)膜電圖顯示低于正常的b波。
This school is for subnormal children. 這所學(xué)校是為低能兒童開的。
He was born subnormal and will never learn to speak. 他天生低能，學(xué)不會講話。
