Speech Difficulties in Down Syndrome. Down syndrome (DS) is an incurable genetic disorder that has a profound impact upon a personâs physical, mental, and social development. Children with DS have anatomical and physiological differences in the mouth and throat region that affect feeding, swallowing, and oral motor skills.
1 A gross refers to a group of 144 items (a dozen dozen or a square dozen).  A great gross refers to a group of 1728 items (a dozen gross or a cubic dozen).
Gross income includes all income that is not exempt from tax. As of 2012, the gross income limit is $3,800. For example, if your adult child works a summer job and earns $4,000 in 2012, you can't claim him because he does not satisfy the gross income limit test.