/,mægnɪfɪ'keɪʃn; ,mæˇnəfə`keʃən/
n
1 [U] (power of) magnifying 放大; 放大能力
*a lens with excellent magnification 放大能力极佳的透镜.
2 [C] amount of increase in apparent size 放大率; 放大倍数
*This object has been photographed at a magnification of 3, ie three times actual size. 此物体拍照时已放大了三倍.

n
[U]
the process of making something look bigger than it is
at high/low etc magnification
　When viewed at high magnification it is clear that the crystals are quite different.
　greater levels of magnification
under magnification
　The colour is evident even under low magnification.
[C]
the degree to which something is able to make things look bigger
　binoculars with a magnification of x12 (=which make things look 12 times as big)