(astronomy) A star whose identity, position and magnitude are accurately known

plural of reference library

A library that exclusively collects reference books (which may not be lent out to the general public).

(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

(computing) a reference that does protect the referenced object from collection by a garbage collector

(computing) The technique of storing the number of handles, pointers, or references to a resource such as a block of memory, disk space, or an object, so that the system can determine when the resource is no longer in use.

plural of reference variable

plural of character reference

(computing) a weak reference that is garbage-collected less aggressively.