noun
non-preferred term
Computing term for a term that is not the preferred one in a controlled vocabulary or thesaurus.
このシソーラスでは、各概念に優先語と非優先語が設定されている。
In this thesaurus, each concept has a preferred term and non-preferred terms.
Compound of 非 (non-) + 優先 (priority) + 語 (word). A modern technical term.