concretion

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun the formation of stonelike objects within a body organ (e.g., the kidneys)
noun a hard lump produced by the concretion of mineral salts; found in hollow organs or ducts of the body
noun an increase in the density of something

Borrowed from French concrétion, or Latin concretio.

Like the trunk of a tree, it has been built up by successive concretions of successive active zones. — The Will to Believe, and Other Essays in Popular Philosophy, William James
Another weed known as velp, with leaves four feet long, buried in the coral concretions, hung at the bottom. — Twenty Thousand Leagues under the Sea, Jules Verne
And he defines matter as something without shape and without limitation, and says that from it all concretions arise. — The Lives and Opinions of Eminent Philosophers, Diogenes Laertius

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