The lower part of the breastbone. The xiphoid process has no particular function and ranges in size from miniscule to several inches in length.
Medical abbreviation for radiotherapy.
One of the three major preparations of red yeast rice, a tradition Chinese medicine now used to lower cholesterol.
The sex chromosome complement of a normal human female. See also X chromosome.
- XXX syndrome
A chromosome condition present in 1 in 1000 females, due to the presence of three X chromosomes rather than the usual two. The condition is associated with increased height but no malformations. Intelligence ranges from above normal to mild retardation. The average IQ is 85 to 90. Learning problems may be helped by early special […]
- XXXX syndrome
A chromosome disorder in females caused by the presence of four X chromosomes rather than the usual two. The disorder is characterized by decreased intelligence (IQ 30 to 80; average 55), speech and behavioral problems, tall stature and reduced fertility. Also known as tetra-X syndrome.