(亦作z)
(pl. Zs 或Z's)
1
- the twenty-sixth letter of the alphabet英语字母表中第二十六个字母。
1.1
- denoting the next after Y in a set of items, categories, etc.Z项, Z类（一组项目、分类中的第二十六位）。
1.2
- denoting a third unknown or unspecified person or thing第三个未知（或未指明）的人（或物）：
X sold a car to Y (a car dealer) who in turn sold it to Z (a finance company).
X将一辆车卖给Y（汽车经销商）, Y再把车卖给Z（金融公司）。
1.3
- （一般作z）the third unknown quantity in an algebraic expression（代数表达式中的）第三未知量。
- [ORIGIN: the introduction of x, y, and z as symbols of unknown quantities is due to Descartes （see X1）]
1.4
- （一般作z）denoting the third axis in a three-dimensional system of coordinates（三维坐标系统中的）第三坐标轴：
in combination the z-axis.z轴。
2
- a shape like that of a capital Z.Z字形, 之字形：
in combination the same old Z-shaped crack in the paving stone.铺路石上和原来一模一样的Z形裂缝。
3
- used in repeated form to represent the sound of buzzing or snoring（数个Z连用, 表示）嗡嗡声或打鼾声。
短语
catch some（或a few）Zs
- informal, chiefly N. Amer. get some sleep〈非正式, 主北美〉睡一会儿。
- Zambia (international vehicle registration).同ZAMBIA（国际车辆注册用语）。
- Chemistry atomic number【化】原子序数。