A cross-reference (noun) is an instance within a document which refers to related or synonymous information elsewhere, usually within the same work. To cross-reference or to cross-refer (verb) is to make such connections.
(Cross-Referenced) Course content is the same as another course, e.g. HIST 7 and PHIL 23.
a reference at one place in a work to information at another place in the same work
Provide with cross references to another text or part of a text
An oil filter is a filter to remove contaminants from engine oil, transmission oil, lubricating oil, or hydraulic oil. Oil filters are used in many different types of hydraulic machinery.
A cartridge-filled canister placed in an engines lubricating system to strain dirt and abrasive materials out of the oil.
a filter that removes impurities from the oil used to lubricate an internal-combustion engine