bath chair

noun1

1. •
   A chair that can be used in a bath (bathtub), coming in different sizes for babies and adults.

noun1

1. •
   (historical) An early form of wheelchair with three wheels, used to transport ladies or invalids, common in Victorian England.

   • He was an invalid, keeping his bed half the time, and the other half hobbling round the house with a stick or being pushed about the grounds by the gardener in a Bath chair. — 1904