An explicit set of requirements to be satisfied by a material, product, or service. / An act of specifying.

A set of requirements defining an exact description of an object or a process.

plural of specification

(grammar) Serving to specify something.

plural of specificity

Specificity, the state of being specific

Abbreviation of specifically.

(obsolete, transitive) To show, mark, or designate the species, or the distinguishing particulars of; to specify.

A distinguishing attribute or quality. / A remedy for a specific disease or condition. / Specification / (in the plural) The details; particulars.

The state of being specific rather than general. / (statistics) The probability, in a binary classification test, of a true negative being correctly identified.