'Tandem bicycle' definitions:

Definition of 'tandem bicycle'

(from WordNet)
noun
A bicycle with two sets of pedals and two seats [syn: bicycle-built-for-two, tandem bicycle, tandem]

Definition of 'Tandem bicycle'

From: GCIDE
  • Tandem \Tan"dem\, n.
  • 1. A team of horses harnessed one before the other. "He drove tandems." --Thackeray. [1913 Webster]
  • 2. A tandem bicycle or other vehicle. [Webster 1913 Suppl.]
  • Tandem bicycle or Tandem tricycle, one for two persons in which one rider sits before the other. [1913 Webster]