This word is not acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Substance: used chiefly in a few anatomical phrases.

substantia nigra    substantia ferruginea    rolandi    substantia gelatinosa centralis    substantia gelatinosa posterior   

naturam    bonum    ipsum    propriam    secundum