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.
The aspect for which someone or something is best known; a hallmark or typical characteristic.
Any proprietary business, product or service name.
A word, symbol, or phrase used to identify a particular company's product and differentiate it from other companies' products.
To register something as a trademark.
To so label a product.
Distinctive, characteristic, signature.