Definition of "pictura"

It is customary to distinguish three components in an emblem: the pictura or symbolic image or picture, accompanied by the preceding inscriptio or motto and the subsequent subscriptio, usually an explication in verse of the idea expressed in combination of the inscriptio and the pictura.

2004, Steven Paul Scher, Walter Bernhart, Werner Wolf, Essays on Literature and Music (1967-2004), pages 57–58

Clearly, the relationship between pictura and motto became more literal in this emblem.

2010, Simon McKeown, The International Emblem: From Incunabula to the Internet, page 183

A poem may contain things which are significant in spite of the fact that the events it describes are a mere pictura of something which never happened.

2014, Durant Waite Robertson, Essays in Medieval Culture, page 64