Medical definitions - G

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Gastrointestinal reflux – also known as GERD; occurs when the lower esophageal sphincter (LES) does not close properly and stomach contents leak back, or reflux, into the esophagus.

GBS – group B strep; can be passed from mother to baby during delivery; group B strep infection in the newborn is a serious and potentially life- threatening event.

Grams – measurement of weight; 1 pound=454 grams.