Being a distinguishing feature of a person or thing.
A distinguishing feature of a person or thing.
For a given field or ring, a natural number that is either the smallest positive number n such that n instances of the multiplicative identity (1) summed together yield the additive identity (0) or, if no such number exists, the number 0.
The integer part of a logarithm.
The distinguishing features of a navigational light on a lighthouse etc by which it can be identified (colour, pattern of flashes etc.).
Having traits or characteristics in common; alike, comparable.
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.
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.