As regards coordinating coverage under the group plan with Medicare for employees age 65 and older, employer size is a factor: If an employer has more than 20 employees, in most instances the group health plan is the primary payer and Medicare acts as the secondary payer. Traditional Medicare has two main parts: Part A is hospital coverage, and Part B is medical services.
1 pudding basin, a bowl in which raw pudding dough or batter is placed for cooking. 2  wash basin, a sink or bowl to contain water for cleaning hands and other minor washing. 3  toilet basin, an alternate name for a toilet bowl.asin may refer to: 1  Basin, a 5th century Thuringian king. 2  Basin (chanson de geste) , a poem about Charlemagne's childhood. 3  basin (maritime) , the area of a drydock which can be flooded and drained.
Drainage basin: The area drained by a river and its tributaries. A drainage basin is considered to be an open system because water can be added or lost from a drainage basin. Source: The beginning of a river.