Medical Dictionary
2mask
vt
Medical Definition of MASK
1
: to prevent (an atom or group of atoms) from showing its ordinary reactions <to mask hydroxyl in a sugar by converting it into methoxyl>
2
: to modify or reduce the effect or activity of (as a process or a reaction)
3
: to make indistinct or imperceptible <flavorings used in pharmacy to mask the taste of medications>
4
: to raise the audibility threshold of (a sound) by the simultaneous presentation of another sound
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