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.
Wiktionary (0.00 / 0 votes) Rate this definition: basin (Noun). A bowl for washing, often affixed to a wall. basin (Noun). An area of land from which water drains into a specific river. basin (Noun). A rock formation scooped out by water erosion.asin (noun). the entire tract of country drained by a river, or sloping towards a sea or lake. Basin (noun). an isolated or circumscribed formation, particularly where the strata dip inward, on all sides, toward a center; -- especially applied to the coal formations, called coal basins or coal fields.