| 释义 |
ze·ro AHD[zîrʹō, zēʹrō] D.J.[ˈzɪərəʊ, ˈziːrəʊ]K.K.[ˈzɪro, ˈziro]n.（名词）【复数】 ze.ros 或 ze.roes 缩写 z.- The numerical symbol 0; a cipher.0：数字符号0；零
- Mathematics 【数学】
- An element of a set that when added to any other element in the set produces a sum identical with the element to which it is added.零元素：集合中的一个元素，当它加上集合中的任何一个元素时，得到的数值等于被加元素值
- A cardinal number indicating the absence of any or all units under consideration.零：基数，表示在考虑下不存在的任一或所有的单位
- An ordinal number indicating an initial point or origin.零：序数中表示最初的点或原点
- An argument at which the value of a function vanishes.（坐标的）起点：函数自变量的值等于零
- The temperature indicated by the numeral 0 on a thermometer.零度：温度计上数字0所示的温度
- A sight setting that enables a firearm to shoot on target.瞄准仪：一种能使火器射中靶子的、用来调整准度的仪器
- Informal One having no influence or importance; a nonentity:【非正式用语】 无足轻重的人：没有影响力或无足轻重的人；不足取的人：a manager who was a total zero.一个等于废物的经理
- The lowest point:最低点：His prospects were approaching zero.他几乎没有希望
- A zero-coupon bond.无收益但在赎回价格之下的债券
- Informal Nothing; nil:【非正式用语】 没有；全无：Today I accomplished zero.今天我一事无成
adj.（形容词）- Of, relating to, or being zero.零的：零的、与零有关的或成为零的
- Having no measurable or otherwise determinable value.无价值的：没有重大的或其它可肯定的价值的
- Informal Absent, inoperative, or irrelevant in specified circumstances:【非正式用语】 不存在的：在特定环境中不存在的、无效的、无意义的："The town has . . . practically no opportunities for amusement, zero culture"(Robert M. Adams)“这座城市几乎没有机会娱乐，也没有文化”(罗伯特M.亚当斯)
- Meteorology 【气象学】
- Designating a ceiling not more than 16 meters (52 feet) high.零度云高的：指云高不超过16米(52英尺）
- Limited in horizontal visibility to no more than 55 meters (180 feet).零视度的：水平能见度在55米(180英尺）以内的
v.tr.（及物动词）ze.roed, ze.ro.ing, ze.roes - To adjust (an instrument or a device) to zero value.把…调到零点：调整（仪器或设备）到零点
zero in - To aim or concentrate firepower on an exact target location.把…瞄准目标：瞄准或集中火力在正确的目标上
- To adjust the aim or sight of by repeated firings.调整归零：通过重复射击调整目标或视角
- To converge intently; close in:专心注意，迫近：The children zeroed in on the display of toys in the store window.孩子们的注意力都集中在商店橱窗里陈列的玩具上
- Italian 意大利语
- from alteration of Medieval Latin zephirum 源自 中世纪拉丁语 zephirum的变化
- from Arabic ṣifr [nothing, cipher] 源自 阿拉伯语 ṣifr [没有，零]
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