req·ui·site 
(rĕkwĭ-zĭt)
(rĕkwĭ-zĭt)adj.
Required; essential. See Synonyms at indispensable.
n.
Something that is indispensable; a requirement: Algebra is a requisite for taking calculus.
[Middle English, from Latin requīsītus, past participle of requīrere, to require; see REQUIRE.]
requi·site·ly adv.
requi·site·ness n.
- United States of America
- United States Virgin Islands
- unitive
- unitization
- unitize
- unit pricing
- unit rule
- unity
- univ.
- Univ.
- univalent
- univalve
- universal
- universal computer
- universal coupling
- universal design
- universal donor
- universal gas law
- universal grammar
- universalism
- universalist
- universalistic
- universality
- universalization
- universalize