Mature | Double

: Research into plant reproduction sometimes identifies "double mature embryo sacs" in ovules, which can complicate genetic interpretations. Agriculture Intracranial double teratomas - ScienceDirect.com

: Brands like Dewar's use a "Double Double" aging process involving multiple stages of blending and resting in different casks, such as sherry casks, to enhance complexity. Similarly, Aberlour 18 Year Old is a well-known "double cask matured" Scotch. double mature

The phrase appears in various academic papers to describe dual occurrences or specific biological states: The phrase appears in various academic papers to

: 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. such as sherry casks

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.