toilet-train 
verb [with object]
Teach (a young child) to use the toilet: she was toilet-trained by the age of one...
- Most children are toilet-trained for daytime between the ages of 2 1/2 to 5 years old.
- The children were toilet-trained in one home and wore diapers in another.
- I am currently in the process of toilet-training a three-year-old boy who has yet to be persuaded of the merits of abandoning his perfectly comfortable nappies in favour of a cold and draughty potty on the lawn.
- photorespiration
- photorespiratory
- photorespire
- photorespired
- photoresponse
- photoresponsive
- photoreversal
- photoreversibility
- photoreversible
- photo-revolver
- photoscan
- photoscanner
- photoscanning
- photoscope
- photoscopic
- photosculptural
- photosculpture
- photosensitisation
- photosensitise
- photosensitised
- photosensitiser
- photosensitive
- photosensitiveness
- photosensitivity
- photosensitization