'Based' definitions:

Definition of 'based'

(from WordNet)
adjective
Having a base; "firmly based ice"
adjective
Having a base of operations (often used as a combining form); "a locally based business"; "an Atlanta-based company"; "carrier-based planes"

Definition of 'Based'

From: GCIDE
  • Base \Base\ (b[=a]s), v. t. [imp. & p. p. Based (b[=a]sd); p. pr. & vb. n. Basing.] [From Base, n.] To put on a base or basis; to lay the foundation of; to found, as an argument or conclusion; -- used with on or upon. --Bacon. [1913 Webster]

Definition of 'Based'

From: GCIDE
  • Based \Based\ (b[=a]sd), p. p. & a.
  • 1. Having a base, or having as a base; supported; as, broad-based. [1913 Webster]
  • 2. [See Base, n., 18-21.] Wearing, or protected by, bases. [Obs.] "Based in lawny velvet." --E. Hall. [1913 Webster]