monograph

Plural: monographs

Noun

• a detailed and documented treatise on a particular subject
• A scholarly book or a treatise on a single subject or a group of related subjects, usually written by one person.
• A single letter, especially one which represents a phoneme by itself when held in contrast to letters within polygraphs.

Verb

• To write a monograph on (a subject).
• Of the FDA: to publish a standard that authorizes the use of (a substance).