English to English
prerequisite

(pr/I/'r/E/kw/I/z/I/t
)
adjective (a)
- Previously required; necessary as a preliminary to any proposed effect or end; as, prerequisite conditions of success.(adjective)source: webster1913
noun (n)
- something that is required in advance(noun.cognition)Example:
Latin was a prerequisite for admission.
source: wordnet30 - Something previously required, or necessary to an end or effect proposed.(noun)source: webster1913
adjective satellite (s)
- required as a prior condition or course of study(adj.all)source: wordnet30