training wheel

Etymology
From.

Noun

 * 1)  A wheel forming part of the machinery of a cannon or a similar firearm which is turned to train or aim the weapon at a target.
 * 2)  One of a pair of small wheels, each attached to one side of a bicycle's rear wheel to provide support for new riders.
 * 1)  One of a pair of small wheels, each attached to one side of a bicycle's rear wheel to provide support for new riders.

Translations

 * Finnish: tähtäyskoneiston pyörä
 * Spanish:


 * Arabic:
 * Chinese:
 * Mandarin: 輔助輪
 * Danish:
 * Finnish:
 * French: petite roue, ,
 * German:
 * Hebrew: גלגלי עזר
 * Hungarian: kitámasztó pótkerék, támasztókerék, segédkerék
 * Japanese:
 * Macedonian: по́мошни тр́кала
 * Norwegian: støttehjul
 * Polish: boczne kółko
 * Portuguese: rodinha
 * Russian: трениро́вочное колесо́
 * Spanish: llanta de entrenamiento, ruedine ,
 * Swedish:
 * Turkish: eğitim tekerlekleri