What is chromopexy?

When the cell ingests colloidal chromogen particles phagocytotically the process is known as chromopexy, e.g., some mesoblastic cells. Modern zoology by H.S. Bhamrah, page 41, plasma membrane chapter google.com/books?id=Xj-dFhriio8C&pg=PA41&lpg=PA41&dq=chromopexy&source=bl&ots=OlO0WC_HCS&sig=bjJ9B23Sa-ui05lFeKTy-Zd-p_k&hl=en&ei=54UTSuODNpK4sgPA19XzDQ&sa=X&oi=book_result&ct=result&resnum=3">http://books.google.com/books?id=Xj-dFhriio8C&pg=PA41&lpg=PA41&dq=chromopexy&source=bl&ots=OlO0WC_HCS&sig=bjJ9B23Sa-ui05lFeKTy-Zd-p_k&hl=en&ei=54UTSuODNpK4sgPA19XzDQ&sa=X&oi=book_result&ct=result&resnum=3