A line connecting points that have equal distance from a common axis, typically used in technical drawing to represent three-dimensional objects without perspective distortion.

Describing a crystal system with three axes of equal length intersecting at right angles.

Having equal dimensions or measurements in all directions, especially in terms of length, width, and height.

Muscular contraction in which tension increases without a change in muscle length.

Having equal measurements or dimensions when compared using an isometry, a transformation that preserves distance and angles, typically used in geometry and technical drawing.