'Tandem' definitions:

Definition of 'tandem'

From: WordNet
adverb
One behind the other; "ride tandem on a bicycle built for two"; "riding horses down the path in tandem" [syn: tandem, in tandem]
noun
An arrangement of two or more objects or persons one behind another
noun
A bicycle with two sets of pedals and two seats [syn: bicycle-built-for-two, tandem bicycle, tandem]

Definition of 'Tandem'

From: GCIDE
  • Tandem \Tan"dem\, adv. & a. [L. tandem at length (of time only), punningly taken as meaning, lengthwise.] One after another; -- said especially of horses harnessed and driven one before another, instead of abreast. [1913 Webster]

Definition of 'Tandem'

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]

Synonyms of 'tandem'

From: Moby Thesaurus