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).
Long Measure. Another use for the term gross as a unit of measure refers to a long measure of weight. One gross is equal to 112 pounds, and 20 gross is equal to one long ton, also known as a gross ton (2240 pounds). This measure of weight has mostly industrial applications.