without having the complete text in front of me I can only make an educated guess but I would imagine it is (1) the name of a particular form. I have cut and pasted a definition for you.
Overview Treatment
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Motormental retardation
Definition:
Motormental retardation is described as delayed or decreased development of both mental and motor skills.
Alternative Names:
Delayed motor and mental development; Retardation - motormental; Psychomotor retardation
Considerations:
the link is:
http://www.healthcentral.com/ency/408/003313.html
hope this helps
Steve Fitzsimmons