masking

Definitions

[1] [计] 屏蔽, 掩蔽, 掩模
[2] [化] 掩蔽; 隐蔽
[3] [医] 掩蔽(声音或脑电波的), 掩蔽物(金属假牙的)

[ 'mæskɪŋ ]