Illustrated Companion to the Latin Dictionary/Coagulum

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

COAG'ULUM (πυετία). Rennet; i. e. anything used in curdling milk; for which the concreted milk found in the stomachs of suckling animals, the milky moisture contained in the stomach of a pig, as well as the stomach itself, and vinegar, was commonly employed by the Romans. (Varro, R. R. ii. 11. 4. Plin. H. N. xxiii. 63.) Hence, also, curdled milk (Plin. H. N. xxviii. 45.); and cheese. Ovid. Fast. iv. 545.