: Case reports use the term to describe simultaneous but separate growths, such as "double mature teratomas" (tumors) found in different parts of the brain or "double mature pseudocysts" of the pancreas.
: Research into plant reproduction sometimes identifies "double mature embryo sacs" in ovules, which can complicate genetic interpretations. Agriculture Intracranial double teratomas - ScienceDirect.com double mature
In the spirits industry, "double mature" refers to aging a liquid in one type of cask and then transferring it to a different cask type to add a second layer of flavor. : Case reports use the term to describe