monograph🔊

A scholarly book or a treatise on a single subject or a group of related subjects; especially, such a document that is written by one person.

(technical, archaic) A nonserial (nonperiodical) publication: a one-time publication.

(linguistics, uncommon) A single letter, especially one which represents a phoneme by itself.

To write a monograph on (a subject).

(US) Of the FDA: to publish a standard that authorizes the use of (a substance).