| morphogen | <embryology> Diffusible substance that carries information relating, for example: to position in the embryo and thus determines the differentiation that cells perceiving this information will undergo. (18 Nov 1997) |
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| morphogenesis | <cell biology> The process of shape formation: the processes that are responsible for producing the complex shapes of adults from the simple ball of cells that derives from division of the fertilized egg. (18 Nov 1997) |
| morphogenetic | Relating to morphogenesis. (05 Mar 2000) |
| morphogenetic movement | <embryology> Movements of cells or of groups of cells in the course of development. Thus the invagination of cells in gastrulation is one of the most dramatic of morphogenetic movements, another much studied example is the migration of neural crest cells. (21 Jun 2000) |
| morphogeny | <biology> History of the evolution of forms; that part of ontogeny that deals with the germ history of forms; distinguished from physiogeny. Origin: form + root of to be born. Source: Websters Dictionary (01 Mar 1998) |