Shaping of an organism during embryological development by differentiation of cells, tissues, organs, and organ systems, according to the genetic program of the organism, and influenced by morphogens and environmental conditions.
Source: PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 781 (https://doi.org/10.1515/pac-2015-1202)