Definify.com
Webster 1913 Edition
Tandem
Tan′dem
(tăn′dĕm)
, adv.
& Adj.
[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.
Tan′dem
,Noun.
1.
A team of horses harnessed one before the other.
“He drove tandems.” Thackeray.
Tandem bicycle
or Tandem tricycle
one for two persons in which one rider sits before the other.