You searched for: “axis
axis
An imaginary or theoretical line around which a body or object; such as, a planet, rotates.
This entry is located in the following unit: Astronomy and related astronomical terms (page 4)
axis
The second vertebra of the neck and the center of rotation.
This entry is located in the following unit: Dog or Canine Terms + (page 2)
Word Entries containing the term: “axis
one-axis tracking
A system capable of rotating about one axis.
This entry is located in the following unit: Photovoltaic Conversion Efficiency Terms + (page 14)
semi-major axis
1. Half the length of the major axis of an ellipse; a standard element used to describe an elliptical orbit. 2. Half of the larger diameter of an ellipse.

Half of the smaller diameter is the semi-minor axis.

This entry is located in the following unit: Astronomy and related astronomical terms (page 23)
two-axis tracking
A photovoltaic array tracking system capable of rotating independently about two axes; for example, vertical and horizontal.
This entry is located in the following unit: Photovoltaic Conversion Efficiency Terms + (page 22)
Word Entries at Word Info: “axis
axes, axes, axis
axes (AHK sis) (noun)
1. Tools that have heavy metal blades and long handles that are used for chopping wood, etc.: The men used the axes to clear the trees blocking the highway after the storm.
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.
axes (AHK sis) (verb)
Cutting, reducing, economizing: If Elwood axes the purchase of a new car, he will be saving a lot of money.
axis (AHK sis) (noun)
1. The imaginary straight line that something; such as, the earth, turns around: The earth rotates on its axis.
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.

axis (s), axes (pl)
1. The uppermost cervical vertebra (called the atlas) which rotates around the odontoid process.

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.

This entry is located in the following unit: axi-, axl- + (page 1)
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A unit at Word Info related to: “axis
(Greek > Latin: axis)
Word Entries at Word Info containing the term: “axis
electrical axis
1. The direction in a crystal in which electrical resistance is at a minimum.
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.
This entry is located in the following unit: electro-, electr-, electri- (page 16)
neutral axis, neutral surface
1. In engineering, the line or plane through the section of a beam or plate which does not suffer extension or compression when the beam or plate bends.
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.
This entry is located in the following unit: neutro-, neuter-, neutr-, neut- + (page 1)
orthoaxis, ortho axis
That axis in s crystal of the monoclinic system (a crystal that has three unequal axes, with one pair not at right angles) which is perpendicular to the other axes.
This entry is located in the following unit: ortho-, orth- + (page 1)
pupillary axis
An imaginary line through the center of the pupil of the eye and perpendicular to the cornea.
This entry is located in the following unit: pupillo-, pupill- + (page 1)