Stain From a Fountain Pen, Used by Psychologists

This page is the CodyCross answer for the clue below from Photography, Group 2014, Puzzle 2 (Robert Capa).

Question is: Stain From a Fountain Pen, Used by Psychologists

and the answer is: INKBLOT

Word Meaning:

INKBLOT — A blot of ink.

Definitions from Wiktionary.