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.).
Being a distinguishing feature of a person or thing.
Something that differentiates a thing or person.
The third step in OPQRST where the responder investigates what the NOI/MOI feels like.
A newspaper with relatively serious, high-quality content.
Level of excellence.
The degree to which a man-made object or system is free from bugs and flaws, as opposed to scope of functions or quantity of items.
In a two-phase liquid–vapor mixture, the ratio of the mass of vapor present to the total mass of the mixture.
Being of good worth, well made, fit for purpose; of high quality.