Of geometrical figures including triangles, squares, ellipses, arcs and more complex figures, having the same shape but possibly different size, rotational orientation, and position; in particular, having corresponding angles equal and corresponding line segments proportional; such that one can be had from the other using a sequence of rotations, translations and scalings.
Of two square matrices; being such that a conjugation sends one matrix to the other.
Having traits or characteristics in common; alike, comparable.
That which is similar to, or resembles, something else, as in quality, form, etc.
A material that produces an effect that resembles the symptoms of a particular disease.
Unmatched, superlative, the best ever done, record setting.