signature

A person's name, written by that person, used as identification or to signify approval of accompanying material, such as a legal contract.

An act of signing one's name; an act of producing a signature.

The part of a doctor’s prescription containing directions for the patient.

Signs on the stave indicating key and tempo, composed of the key signature and the time signature.

A group of four (or a multiple of four) sheets printed such that, when folded, they become a section of a book.

A pattern used for matching the identity of a virus, the parameter types of a method, etc.

Data attached to a message that guarantees that the message originated from its claimed source.

A mark or sign of implication.

A dish that is characteristic of a particular chef.

A tuple specifying the sign of coefficients in any diagonal form of a quadratic form.

A resemblance between the external character of a disease and those of some physical agent, for instance, that existing between the red skin of scarlet fever and a red cloth; supposed to indicate this agent in the treatment of the disease.

Text (or images, etc.) appended to a user's emails, newsgroup posts, forum posts, etc. as a way of adding a personal touch. Email signatures often include extended contact information. Forum signatures often serve as a way for a user to express themselves (song lyrics, art, etc.).