Wasn't sure as couldn't find this in any of my dictionaries either however copied this from the internet!! (For our studies, a key question might be how these various semiotic signs relate to texts in general5 and to their Visuality in particular. To describe the ‘text’ as a ‘complex sign’ or a ‘supersign’ suggests it might be symbolic, indexical, and iconic all at once, but does not map out the spectrum of its Visuality as an actual system being seen, read, or imaged. A text should be more ‘readable’ when it also easier to visualise, e.g., my version [97a] versus the original [97] back in II.132)