/ɪn'fɪnətɪ; ɪn`fɪnətɪ/
n
1 [U] state of being endless or boundless; infinite nature 无穷; 无极; 无限; 大自然
*the infinity of space 空间的无限.
2 [U] infinite distance or point in space 空间中无限远的距离或点
*gaze into infinity, ie vaguely into the distance 向茫茫远方望去
* Parallel lines meet at infinity. 平行线永不相交.
3 [U] (mathematics 数) number larger than any other that can be thought of (expressed by the symbol ); infinite quantity 无穷大, 无穷（符号为）
*Multiply y by infinity. 以无穷数乘y. =>App
4 见附录4.
4 [sing] indefinitely large amount 无限大的量
*an infinity of stars, of troubles, of things to do 星星、麻烦、要做的事无限多.

n
[U]
a space or distance without limits or an end
　the infinity of space
[singular, U]
a number that is too large to be calculated
　In the equation below, as E goes to zero, n approaches infinity.
infinity of
　There is an infinity of possible solutions.