The list of sources used or considered in preparing a work.

plural of reference book

A book providing factual information. / (libraries) A book that can be consulted in the library but cannot be borrowed.

(medicine) pain perceived at a location other than the site of the painful stimulus

plural of reference angle

An acute angle with the same values of trigonometric functions, up to sign, as another angle: used for easy reference when examining the non-acute angle.

(information science) A reference that specifies within some taxonomy or text typology one or more defined categories into which the referenced article, computer file etc. belongs.

plural of category reference

The false belief that random occurrences have a special connection to oneself.

(computing) A piece of software that implements a specification of requirements and whose main purpose is to help in the creation of other software implementations of the specification by serving as a point of reference rather than being put to directly productive use.