carcoma

car·co·ma

(kar-kō'mă),
Granular material colored dark red-brown or mahogany that occurs in human feces in tropic regions; it yields a chemical reaction similar to that of urobilinogen and is composed of calcium oxide, iron, phosphoric and carbonic acids, urobilinogen, cholerythrogen, and other organic matter in varying proportions.
[Sp. wood dust under the bark of a tree, caused by the wood louse]
References in periodicals archive ?
Mientras hilan las Parcas mi mortaja, Una cruz de ceniza hago en la frente, El tiempo es la carcoma que trabaja Por Satanas.
Es una suposicion, pero remuerde; esta profundamente anidada, como la carcoma; por fuera no se ve, pero roe y taladra>> [19].