ni·dic·o·lous (n?-d?k??-l?s)adj.1. Remaining in the nest after hatching until grown or nearly grown. Used of a bird.2. Sharing the nest of another species of animal: nidicolous mites.[Latin n?dus, nest; see sed- in Indo-European roots + -colous.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.nidicolous (n??d?k?l?s) adj (Zoology) (of young birds) remaining in the nest for some time after hatching[C19: from Latin n?dus nest + colere to inhabit]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014ni?dic?o?lous (na??d?k ? l?s) adj. remaining in the nest for a period after hatching. [1900?05;