Half of the smaller diameter is the semi-minor axis.
2. Cutting or removing something: The program director thought the only solution was a series of axes of television programs from the new seasonal schedule.
2. A straight line that divides a shape evenly into two parts: An axis is a central line around which the parts of an object are symmetrically or evenly arranged.
3. An affiliation of two or more nations to promote and ensure mutual interest, cooperation, and solidarity in their relations with foreign powers: The Axis, or alliance, of Germany and Italy in 1936, later including Japan and other nations, opposed the Allies in World War II.
There was an interesting photograph collage of many ancient axes mounted on the wall behind the six representatives of the nations comprising the peace axis during their negotiations.
The joint between the axis and atlas is a pivot type of joint. It allows the head to turn.2. A line around which a revolving body turns or around which a structure would turn if it did revolve.
3. A line around which specified parts of the body are arranged.
The Latin word axis means axle or pole. The axis bone serves as the axle about which the atlas (and the head) turn.4. A straight line around which a body or geometric object rotates or may be conceived to rotate.
5. In mathematics, an unlimited line, half-line, or line segment serving to orient a space or a geometric object; especially, a line around which the object is symmetric.
6. A reference line from which distances or angles are measured in a coordinate system.
7. A center line to which parts of a structure or body may be referred.
8. In botany, the main stem or central part around which organs or plant parts; such as, branches are arranged.
9. 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.
10. A line through the optical center of a lens that is perpendicular to both its surfaces.
11. An alliance of powers; such as, nations, to promote mutual interests and policies.
Axis The alliance of Germany and Italy in 1936, later including Japan and other nations, that opposed the Allies in World War II.
2. The x axis in a quartz crystal where there are three such axes in a crystal, each parallel to one pair of opposite sides of the hexagon.
All pass through and are perpendicular to the optical or z axis.3. In electrocardiographic work, it is the direction of the electrical forces in the heart at a given moment in the cardiac cycle.
2. A line or plane, in a beam under transverse pressure, at which the fibers in the structure are neither stretched nor compressed, or where the longitudinal stress is zero.