Population genetics: A retrospective model describing the merging of ancestral lineages, or the point in a genealogy where two or more lineages merge (the most recent common ancestor).
Under the coalescent, the expected time to the most recent common ancestor can be calculated.
coalescentadjective
Coming together to form one mass or whole.
The coalescent forces of the two companies resulted in a powerful new entity in the market.
Biology/Anatomy: (of organs or structures) fused or growing together.
The stamens are coalescent, forming a tube around the pistil.