1. physiology involving pushing muscles against something: describes exercises in which muscles are put under tension but not allowed to contract
2. equal: equal in dimension or measurement
3. crystallography with three equal axes: describes a crystalline system that has three equal axes at right angles to one another
4. poetry with lines of same length: having the same number of metrical feet in each line of poetry
5. engineering projected at same angle to axes: projected so that the plane of projection of a three-dimensional drawing is at an equal angle to each of the three axes of the object drawn
[Mid-19th century. < Greek isometria "equality of measure"]
