'yearlong' definitions:

Definition of 'yearlong'

(from WordNet)
adjective
Lasting through a year; "attending yearlong courses"

Definition of 'yearlong'

From: GCIDE
  • year-long \year"-long\ yearlong \year"long\, adj.
  • 1. lasting through a year. attending year-long courses
  • Syn: yearlong. [WordNet 1.5 + CM]