axis of symmetry


Also found in: Dictionary, Medical, Acronyms.

axis of symmetry

[′ak·səs əv ′sim·ə·trē]
(mechanics)
An imaginary line about which a geometrical figure is symmetric. Also known as symmetry axis.
References in periodicals archive ?
Next they should take another sheet of scrap A4 paper, and fold it lengthwise just as before, thus creating a long axis of symmetry again.
To ensure more efficient application of the macroflows of liquid metal formed in the crucible for the treatment of metallic components, it is necessary to intensify the macroflows of molten metal of the liquid pool in the direction of the vertical axis of symmetry of the crucible towards the treated component.
Moreover, after the first snapshot, their values along the axis of symmetry decrease faster close to the bubble front and slower toward the other end.
The center line or axis of symmetry should also be the parting line so that both halves of the die plate will be exact, mirror images, Figure 5.
This ellipsoid has a circular cross section on the y-z plane and an axis of symmetry in x.
After tracing the axis of symmetry zones from 5 to 5mm areas were scored on crystal axis and the Martens hardness test was made in the points scored, with loading in the full cycle.
Measurements were carried out in vertical direction in two points 1 B and 2B, located on longitudinal axis of symmetry OX of the swinging table at a distance L from each other in such way that point 2B to be as close as possible to technological axis of the MCCB strand (see Figure 2).
Although the horizontal or vertical translation of the extrudate from dies with one axis of symmetry has been reported once before (9), the twisting of a completely asymmetric profile appears to have not.
11 The three banks of lower seats might suggest an axis of symmetry perpendicular to and centred on the middle row, but this would not be normal to anything on stage, and insignificant in the total plan.
X-ray analysis confirmed this solution, revealing no shrinkage occurred when the casting was filled and fed from the casting's axis of symmetry.