-chroous or -chroicadj combining formcoloured in a specified way: isochroous. [from Greek khr?s skin, complexion, colour]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014-chroous or -chroic a combining form meaning ?having a color? of the kind or number specified by the initial element: isochroous. [comb. form representing Greek chr?s skin, skin color; see -ous] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.