'better-known' definitions:

Definition of 'better-known'

From: WordNet
adjective
More familiar or renowned than the other of two; "the better-known book of the two"

Definition of 'better-known'

From: GCIDE
  • better-known \better-known\ adj. prenom. more familiar or renowned than the other of two. Antonym of lesser-known. the better known book of the two
  • Syn: better known(predicate). [WordNet 1.5]