ax.is

axis的音标和读音：
DJ音标发音： [ˈæksis]
KK音标发音： [ˈæksɪs]

axis的词性：
n.（名词）

1. A straight line about which a body or geometric object rotates or may be conceived to rotate.
轴线：身体或几何物体转动或被设想成转动所围绕的一条直线

2. Mathematics
【数学】

3. An unlimited line, half-line, or line segment serving to orient a space or a geometric object, especially a line about which the object is symmetric.
轴：用于给空间或几何体定位的无限直线、射线或线段，特别是关于对称物体的线

4. A reference line from which distances or angles are measured in a coordinate system.
座标轴：坐标系中测量距离和角的参考线

5. A center line to which parts of a structure or body may be referred.
中轴：结构物或人体的某些部分可被参照的中心线

6. An imaginary line to which elements of a work of art, such as a picture, are referred for measurement or symmetry.
中轴线：相对于某些要求测量或对称的文艺作品的一条假想线，如绘画

7. Anatomy
【解剖学】

8. The second cervical vertebra on which the head turns.
支撑头转动的第二条颈椎

9. Any of various central structures, such as the spinal column, or standard abstract lines used as a positional referent.
中心结构物：任何一种中心结构物，如脊柱，或用于有位置物体的标准抽象线

10. Botany The main stem or central part about which organs or plant parts such as branches are arranged.
【植物学】 茎轴：象枝条这样的器官或植物的基本构成体被排列于其上的主茎或中心部分

11. One of three mutually perpendicular lines that define the orientation of an aircraft, with one being along its direction of travel and the other two being perpendicular to the direction of travel.
导向轴：决定飞机方位的三条相互垂直线中的一条，一条沿着飞行的方向，其它两条垂直于飞行的方向

12. A line through the optical center of a lens that is perpendicular to both its surfaces.
光轴：通过透镜的中心垂直于物体两面的线

13. One of three or four imaginary lines used to define the faces of a crystal and the position of its atoms.
晶轴：用于决定水晶表面和它的原子位置的三、四条假想线中的一条

14. An alliance of powers, such as nations, to promote mutual interests and policies.
轴心：促进共同利益以及方针政策的权力联盟，如国家

15. Axis The alliance of Germany and Italy in 1936, later including Japan and other nations, that opposed the Allies in World War II.
Axis 轴心国：1936年的德意联盟，后来包括在二次大战中反对同盟国的日本和其它国家

axis的词源：

16. Middle English
中古英语

17. from Latin
源自 拉丁语