undefined, vague
(adjective) not precisely limited, determined, or distinguished; “an undefined term”; “undefined authority”; “some undefined sense of excitement”; “vague feelings of sadness”; “a vague uneasiness”
Source: WordNet® 3.1
undefined (not comparable)
Lacking a definition or value.
(mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
• (lacking a definition or value): indefinite, undefinable; see also indistinct or vague
• defined
Source: Wiktionary
18 September 2024
(noun) a jet engine in which a fan driven by a turbine provides extra air to the burner and gives extra thrust
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