A twin, triplet, or higher-order pregnancy (four or more babies) is called multiple pregnancy. If more than one egg is released during the menstrual cycle and each is fertilized by a sperm, more than one embryo may implant and grow in your uterus. This type of pregnancy results in fraternal twins (or more).
Answers.comÂ® is making the world better one answer at a time. The term LS in football stands for Long Snapper, the guy who Snaps the ball to the holder in a field goal. 11 people found this useful.
Spondylolisthesis or spinal curvature are two other diseases in the field of chronic lumbar spine syndrome. Weak back muscles, or if painful cramps and muscle tightness in the lower back often occur, when bone loss (osteoporosis) is present, can also lead to chronic LS-syndrome.