Editing Creode (section)

'''Creode''' or '''chreod''' is a [[neologism|neologistic]] [[portmanteau]] term coined by the English 20th century biologist [[C. H. Waddington]] to represent the developmental pathway followed by a [[cell (biology)|cell]] as it grows to form part of a specialized organ.<ref>Waddington,  pp 19–30</ref>  Combining the Greek roots for "necessary" and "path," the term was inspired by the property of [[biology|regulation]].<ref>Waddington, p 32</ref>  When [[biology|development]] is disturbed by external forces, the embryo attempts to regulate its growth and differentiation by returning to its normal developmental trajectory.